- Buying in bulk doesn't necessarily save you more money. If you don't use it all and the food goes to waste, you end up throwing money away. Make sure that you are careful in what you purchase, and that they are things you will indeed use in that size.
- Know your price per ounce/unit/etc. Sam's, and I'm assuming Costco as well, is famous for carrying sizes on products that don't match up with other stores. The cleaning products have 2 more ounces in them, or things like that. I suggest taking a notebook with you to the the stores you frequent and track the prices by price per ounce. It makes your comparisons easier to do.
- Once you know your price per ounce/unit, you can then determine if purchasing some things are better at a regular store on a great sale with a coupon.
- Don't go hungry!
We also find great luck on purchasing things like photo paper, socks, underwear, and the salt for our water softener.
Be strategic, have a plan, and shopping in the warehouse store can be a helpful element to your frugal goals.