Steve Rogers is all about good, old-fashioned values.  Like opening doors for ladies, helping senior citizens across the street, saving cats stuck in trees, and financial responsibility.  That's why I'd wager he carries the 50% Vibranium, 50% Adamantium Captain America Metal Badge Money Clip!  Well, believe it or not, I'm having trouble verifying that the Captain America Metal Badge Money Clip is indeed made of a Vibranium/Adamantium alloy, but it is definitely a metal construct of some sort, so we'll just pretend.  Keep your cash in order with the Captain America Metal Badge Money Clip and it will be with you 'til the end of the line.