A strop is basically a piece of leather. After a knife is sharpened, it can be taken to a strop, which aligns the edge, and helps the knife cut. If the strop is loaded, with a compound, then it can polish the blade, and hone the edge to a higher level. For example, after I sharpen off a Fine Spyderco ceramic, I can usually shaving sharp. However, if I strop, I can get it to hair popping sharp.
I'll add a how to strop in the last step, just in case.
Anyways, this instructable is mainly on how to load a strop, or to apply the compound. There are many different types of compound, such as diamond paste from DMT. I just use a green, chromium oxide compound from sears. Costed around $3. It's basically a block of craftsman polishing compound.
What you need:
Strop (piece of leather works best, although I have heard of jeans. And some people prefer balsa wood.)
Stove (really hope you have one... or just a campfire in the middle of the woods)
Compound (I got the one from sears. "Craftsman Green buffing compound")
Knives (If you don't, erm.. move on to another instructable. Or check out my other instructables to make a knife first!)
Paper Towel/Toilet Paper (Go to a fast food restaurant and borrow some if you have to)
Step 1: Clean the strop
If you have a clean piece of leather, skip this step.
To clean the strop, I use ispropyl alcohol, and just rub down the strop and try to remove most of the things. Then, I use a 320 grit piece of sandpaper to both clean the strop, and also give the compound something to adhere to.