Don't think there are Sams Clubs here. I used to have a membership to Costco through my old employer. In all honesty didn’t buy a whole lot for personal use. Being a single person buying in bulk isn’t that practical.
My oldest goes with her boyfriend and I’ll have her get a few thing like trash bags, toothbrush heads, water filters, sponges and cat food come to mind. I still have batteries and lightbulbs I bought THREE years ago.