I carried one of these for years before it finally fell apart and gave up the ghost. I use it for a SPARE credit card and my senior ID, as well as a SPARE five-dollar bill. This is as a result of my accidentally leaving my wallet on an airplane once and arriving in a domestic airport with absolutely NO MONEY, NO CREDIT CARD and NO ID. Now I shove this little loaded beauty in my hip pocket (no bulge, very, very slim), and I have actually used the contents from time to time when my wallet was not immediately at hand.