We love Trader Joe's. Unfortunately it's about half an hour away from where we live so we don't come here often. When we do we tend to stock up on snack and appetizer type foods (nuts, frozen stuff, chips, etc) which are all delicious.
Staff is friendly, I love the theming and pricing isn't bad...between the cheapest type places like Aldi & WalMart but nowhere near as expensive as Whole Foods & Market District.