Generic OTC meds from Wal-Mart and Target: pain relievers, cold, sinus, allergy meds. Don't think I've ever purchased one that I had any issues with.
Love almost ALL the generics at Market Basket here in MA/NH. Prices and quality is great for their products.
Only brand name I insist on is Pledge for my tables. A can lasts me a year so I paying a bit more doesn't bother me.