Some time back, an ex-colleague suggested that everyone should carry at least a currency of fantastic denomination to "keep" one's wealth intact. I am not sure which traditional belief it is, but the idea is akin to keeping the rice bowl full. Popular currencies are Vietnamese Dong and Indonesian Rupiah. One has to get a single note of at least 10,000 or above. Yesterday, I came across an even better alternative, a million dollars MJ note.