has anyone bought one of these systems? i'm wondering how many credit cards you can fit into the pocket; i know the blade's clip holds the bills, but i don't want to stress out the width of the material for the cards. can you fit a license and two or three cards in there or is that stretching it? depending on what i hear here i might buy one; it's definitely in my mind as long as i can fit my cards in there i'd never leave home without it. hey, James, there's your slogan: the credit card blade, don't leave home without it...sorry.