Wageslave, ever considered that costco is costing you a bundle? We buy generic or store brand for most of those purchases and they work just as well as the name brands at costco (or costco's store brand). For example, we buy diapers at dollar general online, use a 20% off $100+ coupon, and use a shopping portal (mrrebates) for another 3-6% off. For $8x.xx we get 7 megasuperduper size cases of diapers. Shipped to our doorstep. I think I last ordered diapers in September and we have a couple cases left (unless the little guy figures out how to pee/poop in the toilet on command). Wipes - buy on sale online or a stack of the $0.89 packs at Aldi. It takes a little more effort to pay attention to unit prices and actual quality of the products you buy, but I figure we save hundreds per month versus shopping at costco or similar big box club store by default.