I LOVE my Zippy Organizer. In the spot where the checkbook can go I use that for receipts. It fits so much that I finally have a wallet that holds all my stuff. I have about 12 cards I carry, and it can hold coins nicely without bulging...look into it.
http://www.eluxury.com/browse/product_detail.jhtml?styleid=10951088&SectionID=6000
http://www.eluxury.com/browse/product_detail.jhtml?styleid=10951088&SectionID=6000