Along with food, water, and toilet paper (Dude! Do you want to go 6 months without toilet paper?), you need to think about storing enough soap and lotion to last the length of time you're storing food for. So...why not think about making your own soap and lotion?
It's true that you can buy cheaper soap at the grocery store. But if you want the good stuff, that doesn't dry your skin out, it costs more--so why not make your own?
When you think of making your own soaps and lotions, you have several options. You can make your soap from scratch, using raw materials, and the cold process or hot process method. You can make your own lotion from scratch, using raw materials. You can purchase melt-and-pour soap bases and add colors, fragrances, and/or other additives. And you can purchase lotion bases and add fragrances and/or colors.
Personally, I gave up making lotion from scratch a few years ago. I just wasn't getting the results I wanted. After experimenting with sample lotion bases from my suppliers (listed in the Soapmaking Resources at the right), I found a couple bases--one for lotion and one for cream--that I really like. I usually purchase a gallon of each base at a time, then make up enough to fill 3-4 bottles or jars (also available from the resources at the right) each time. Sometimes I leave them unfragranced, sometimes I add fragrance.
What do I, personally, use for lotion and cream bases? For lotion, I like the "Lotion Base- Gallon" from Bramble Berry. Its first ingredient is aloe vera, so I know it's good to use after I go out in the sun. If you don't use too much, it soaks in quickly and doesn't feel greasy. And it gets rid of the middle-age crinklies on the backs of my hands (something my from-scratch lotion never did). For cream, I like "Body Cream Base" from MMS. I don't use it on my hands during the day because it does leave a little bit of a greasy feeling. But I put it on my feet before going to bed, and it is wonderful for keeping the skin on my feet moist and supple. It's also great for rubbing into dry knees or elbows. All the suppliers I've listed have a variety of bases.
Now, for soap. I make my own soap from scratch. Really, it isn't hard to do. There are lots of resources available: books, tutorials on the Internet, and mailing groups. I'd suggest Googling "soap making" and reading the sites that come up. If you're interested, I'd recommend getting a couple books (or more!).
The Soapmaker's Companion, by Susan Miller Cavitch, has been the the bible for soapmakers for a long time. While I don't agree with everything she says, this is an excellent resource.
Smart Soapmaking, by Anne L. Watson, is a great resource, but it shouldn't be your only book on soapmaking. She has a radical method for telling when the soap is ready to pour into the mold. I haven't tested her theory myself, so I don't know how good it is. I still rely on the method of pouring at "trace".
The Everything Soapmaking Book, by Alicia Grosso, is also a good resource for the beginning soapmaker. With any soap recipe from a book or the Internet, it's a good idea to double-check the amount of lye to use (every author makes mistakes, and some books are known for printing lye-heavy recipes). Bramble Berry and MMS both have good lye calculators, and
http://www.soapcalc.net/calc/soapcalcWP.asp is another good one.
If you make your own soap from scratch, you need to deal with lye. You can't make soap without lye. If you use melt-and-pour to craft soap bars, you don't have to deal with lye. But the manufacturer used lye when they made the melt-and pour. So don't believe soap crafters who tell you their soap is better than cold process because it doesn't contain lye. Whether you make soap from scratch or use melt-and-pour soap base, there isn't any lye left in the soap. It has all reacted with the oils and fats you added to make soap.
There are soap artists who make absolutely stunning soaps with melt-and-pour bases. I rarely use melt-and-pour myself, though, because I prefer cold-process soap. But you can make beautiful soaps that are better than what you buy in the store.
Back to the subject of lye. You have to take precautions, which I'm not going into here. But the books listed above do discuss how to safely handle lye, and most on-line tutorials also discuss it.
Because dissolving NaOH in water to make your lye is an exothermic reaction (it generates heat--quite a lot of it), and you want your lye no warmer than 100° when you make the soap, many people mix their lye the night before and let it cool overnight. If you do this, be sure no one can accidently spill it or drink it. Years ago I was on a mailing list with an experienced soapmaker you did this. Her husband got up in the middle of the night to get a drink of water. Because he was half asleep, he forgot that the pitcher on the counter was filled with lye. And he poured himself a glass of lye instead of a glass of water. He survived the experience, but his mouth, throat, and esophogus were horribly burned, and permanently damaged. The moral of this story: Be Very Careful with Lye!
Now that I've scared you about lye, let me say that it can be handled safely. You just need to be careful. You can't go on autopilot with lye. You have to think about what you are doing.
So, why would you want to make cold process soap? Because you can make a rich, creamy, soap that doesn't dry your skin out, and that smells better than anything you can buy in the store. If you want to go the natural route, you can use essential oils to fragrance your soap. Or you can use one of the many [non-natural] fragrance oils available for soapmaking. Personally, I almost always use a fragrance oil.
As a teaser, here are some pictures of soap I've made.
I just made this green soap today. I wanted it green because I used
Woodland Elves fragrance oil, which smells like Christmas trees with some Christmas spices. For the color, I used Yellow #10 die in the entire batch of soap, plus Seafoam Green pigment in a couple cups of soap that I then swirled into the yellow soap.
I made this blue-swirled soap last year. I used the
Woodlands fragrance oil from Sweetcakes. It's a knockoff of a Bath & Bodyworks mens' fragrance. It doesn't smell like trees, as the
Woodland Elves above. But it's a wonderfully sexy men's fragrance. I used blue ultramarine (cosmetic grade, of course) to color this. You may notice the the blue swirls have little blue speckles. That's because I made this soap before I discovered that you really need to blend the colors in with an immersion blender--stirring isn't good enough. Also, I experimented with using the silicone baking molds you can get in the kitchen department of grocery stores. The ones I got worked well, except that the sides of the loaf mold bowed out somewhat. But the soap un-molded very easily. I've heard reports of soap picking up some red dye from some of the red silicone molds, but that didn't happen to me.
This is a batch of soap that is still in the mold (or was when this pic was taken). I used
Vanilla Hazelnut fragrance oil from MMS. This is one of my all-time favorite fragrance oils. But like most vanilla fragrances, it turns soap brown (the vanilla part oxidizes). In this batch, I left some of the soap un-fragranced so it would stay cream-colored. And I swirled that into the fragranced part, and fluffed up the top.
This soap is my most beautiful attempt to make a nice, scrubby gardener's soap. I made the lye with chamomile tea instead of water, and put ground-up and whole calendula petals in it. Chamomile and calendula are both supposed to be good for your skin, and I figured that gardener's hands need a little extra help after they've been out digging in the dirt. I added a little bit of Yellow #10 for color, and cornmeal for scrubbiness. But the cornmeal was too scrubby--it hurt my hands. I'm still experimenting with gardener's soap. I haven't gotten one I like that's as pretty as this soap.
This is a picture of a couple bars of soap I made some time ago. I don't remember what they are, but I suspect they're my two favorite ones. I believe the one on the bottom is a bar of
Vanilla Hazelnut, and the one leaning against it is a bar of
Honey Almond. I usually put ground hazelnuts in the vanilla hazelnut soap, for extra cleansing.
So, what about storing your soap and lotion? They should be stored in a cool, dry, location just like your stored food.
I have soap that has still been good 5 years after I made it. The fragrance was mostly gone, but the soap was still good. So you can make several batches of soap and store them wherever it's convenient. If you cycle through your stored soap as you do your stored food, you shouldn't have any problems. You probably shouldn't store it too closely with your food. Your food should be sealed so I shouldn't pick up any fragrance from the soap, but it's better to be safe than sorry.
You have to be more careful with stored lotion. Most of the manufacturers say their lotion should be used within a year of the date purchased. Kept cool and dry, lotion can probably last longer than that, but you never know. Remember that lotion is a wonderful environment for growing bacteria, molds, and funguses--that's why they require a preservative. I don't store as much lotion as I do soap. I'd recommend keeping at least a few month's worth in storage, and cycling through it as you do your soap and food. I keep mine in the gallon jugs, and only make up (add fragrance and put into bottles) a few bottles or jars at a time.