I boycott Amazon because they don't offer the option of buying a five-minute break for the unfortunate cyborg who has to pack my order. A friend buys a few things at Costco for me, but mainly, I save money by buying ingredients. I make my own granola, bread, hummus, and sprouts. I buy my rolled oats, rice, flour, and lentils in distributor-size bags up to 20 kg. I very seldom use cans, and never eat meat. Processed food and snacks are very rare. The savings go into buying organic for most products. I tried gardening, but was not saving anything close to minimum wage despite all the attention and imperative chores.