I use coupons when I can, but would like to get better at it. Where I live (Brooklyn) we only have smaller local chains that don't do store coupons, but I use mfgr coupons when I can and also use the store's loyalty card which often has an extra discount off of sale items.
We also have a food co-op. They have a monthly coupon book and often put the same items on sale that there are coupons for, so we match those up and get organic brands for the same price or less than regular brands. They also "coupon share" within the store - they have a bunch of the booklets on a counter at the front and a basket for people to throw in coupons they don't use, so you can get multiples of coupons you want. We also get a small (3%) discount for being members. It usually only takes a few cents off of each item, but over the course of a year our savings well exceeds the membership fee.
