Moms who shop at sams club or bjs?

I shop at Sam's and we buy bottled water, fruit, meat, snacks like goldfish and pringles ect., capri sun because my son loves those, the tiny boxes of cereal (30 come in a pack for less than 10 bucks) and then shampoo for my son and I, deodorant, shaving cream, mouthwash, toothpaste, toothbrushes. It is way cheaper in the long run to buy in bulk.