3. Bulk-buy in cooperation with friends. Hesitant to buy a giant mountain of toilet paper? Talk to a friend of yours and agree to split the cost of that mountain. This way, your cost per roll on that toilet paper is very low, but you also don’t have to deal with the storage of that much toilet paper.
There are lots of items you can purchase this way, from paper towels and fruit juice to diapers and bagels.
4. Only buy stuff you know you’ll use up. One of the big temptations at a warehouse club is to convince yourself that you’ll use a huge amount of something that’s perishable, whether it’s salad greens or fresh fruits. You see the price per pound, recognize that it’s much lower than it is at other stores, and talk yourself into it.
Ignore the cost per pound. Instead, you have to focus on the amount you’ll actually use before having to chuck the rest – and that’s a tricky thing. I usually figure on the very low end. On occasion, it’s still a value even if more than half winds up in the compost bin, but most of the time, it’s not really a bargain.