Burma (or Myanmar; there are very foggy 'rules' as to which country uses which name) has just wonderful bank notes. Like Cambodia, there are no coins. Unlike Cambodia, they do not weed out notes that have reached their 'totally used by' date. Their notes just never die - they just keep on hanging together.
The real advantage of this system is two-fold. Firstly, you are never in need of selotape. There are layers of the stuff on one of the notes in your pocket. Secondly, you feel that you are carrying antiquities of great value, every day. This is ancient art; the stuff that should be framed and hung in the pool room.
Here's a few close-up shots of two or three remarkable survivors: