Go to diapers.com and make your order (I have worked out the prices and you pay less for diapers here than anywhere else, including wal-mart. For example a box of 140 size 4 diapers at diapers.com is 38.99, a package of 74 is 19.97 + tax to get the same amount of diapers you have to buy 2 which equals almost 40, without the tax) anyway orders over $50 get free shipping (no gas for you to buy) and orers over $75 get 5% back as credit toward the next order you make. You can stock up on diapers (I do, I'll buy two boxes of diapers and one box of wipes at a time and they last about two months) and when you check out for the first time enter "diapercash" into the promotion code box and get $5 off your first order. I think with two kids we save on average 15-30 dollars a month.