An Update:
The biggest switch I've made since the original post is that I have started couponing. On Mondays, DH and I go on a dumpster diving date and rescue newspapers and inserts. I resisted using coupons for years, because most food Qs are for garbage, but then it occurred to me, "I use coupons for toilet paper!".
Since the couponing, I have amassed a year's+ supply of toilet paper. We are almost all cloth, but we keep paper napkins around to clean the cast iron. I realized that, with Qs, paper towels are actually cheaper than paper napkins, and for whatever reason, paper towel Qs are much more common than paper napkin Qs. In order to keep us from the "whee, it's on a roll" phenomenon, I bought the smaller size paper towels and pulled them all apart and keep them in the tupperware container that I kept napkins it (one small size paper towel is the same width as two napkins). So we go thru about one roll of paper towels per month this way. I found Qs for some paper napkins, got three packages, and two 8 packs of paper towels, so we have about 18 months worth. Altogether, I spent about $30 on the paper good stockpile.
I also got three 6 packs of paper towels for nearly free, so I played paper towel fairly with three of my neighbors. That was fun.
I have amassed a year's supply of toothbrushes, toothpaste, and floss for under $10. I have come to realize that I need never spend more than 25c on any of these items ever again.
First aid supplies also consistently have good coupons, so good that regular price less coupon is cheaper than generics. You don't even have to wait for a sale to save a little money.
I got two huge containers of contact solution for $8, and that should last me a year if not two.
I also found good Qs for zip top bags. I spent $29, but I now have about 400 quart and gallon size bags, which will get us through the next two or three years of harvest.