My absolute favorites are my cles and the business card holder! I put the keys in my cles and all my cards in my business card holder (about 10-12). I only carry cards and used to use cles as my wallet (which worked out well) but I started using my business card holder as my wallet recently and I love it since I can keep my most used cards in separate pockets (but a cles would prob work better if you carry cash too!).

