Organization is crucial with regard to all aspects of couponing, including organizing your stockpile. Not only do I have different stockpiles for different purposes, I also have discrete areas within my main stockpile. For example, I have one section for all the food products, another section for all hair care products, one for soaps and body washes, etc.
One thing I'm not picky about is soap and body wash. I find they all get dirt off of your body. So I have MANY different kinds in my stockpile. However, I group them all together so I have a true picture of what I have in terms of body wash. It would make no sense for them to be spread out in different areas. My stockpile is organized by category.