My first was a tiny Master luggage padlock. It turned out to be a good first choice... I think there were only three pins in the thing, but there was *no* room to do anything in the keyway. Once I figured out how to get it open, I switched to one of the larger padlocks... man, what a difference! Compared to the luggage lock, I felt like I could just stick my whole hand in there and lift each pin.
