I don't return much. Never returned a single item to Amazon. Though this month I've been setting up an apartment in the city and have bought a number of things, decided I didn't need them, and returned them to Costco.
Ironically, I returned the exact two products they use in their scenario to Best Buy. A TV for my mother which she decided was too small, and a laptop that couldn't stream Sportsnet without constantly buffering. Though each time I bought a replacement. Also, I often buy Open Box at Best Buy, most recently a 75" TV for my dad, so feel I've offest those two returns.