Costco definitely adds to our quality of life. We can upgrade to organic products for the same prices as conventional products at other stores. We also like that they treat their employees well, pay living wages and provide good health insurance for them. There are employees at our local store who have been there 25+ years and I think that is due to how well they are treated.
We are a household of 2, vegetarian, and do not drink alcohol. We still find lots of things we need there. We regularly buy gas, nuts, some spices, OTC meds, vitamins, cat litter, frozen food items (when we find vegetarian ones), flatbread, fruits, some vegetables, canned tomatoes, bagged salads, toiletries, laundry and dishwashing detergent. We always look at the clothes and often find great deals. I got 2 lightweight jackets earlier this year that I am delighted with. I got my recent passport pictures there. Over the years we have bought appliances, jewelry, TVs, furniture, linens, cat trees, car batteries, tires, laminate flooring, faucets, light fixtures, and I could go on and on. I'm hoping they get my favorite women's wool socks back in this fall. We have time to walk around and see what is new and try a sample if we are interested. The lines are rarely that long and we have a favorite cashier and we will wait in her line anyway. The only time I avoid is the day before they are closed for a holiday.