We took a trip to Trader Joe's this past weekend. It was long overdue, but we really screwed up this time: we forgot to get cheese. TJ's has a great cheese collection, and we were both looking forward to getting some of their goodies. Oh well, next time. We did get a whole bunch Trader Giotto's frozen pizza, dried fruit, cereal, and granola bars. 
When shopping there, we used one of their smaller, vertical shopping carts. Never tried one of those before, but it doesn't hold too much in there.