If you're worried about getting mugged, one way to prepare is to carry a mugger's wallet. This is a decoy wallet that you're prepared to give away, so once it is taken, your real wallet won't be in jeopardy of being stolen anymore. It needs to be realistic enough to convince the muggers that they've got what they've after. Filling your mugger's wallet with a little cash and some expired IDs is the best way make it seem believable. Next time you're at the ATM, you can rest easy that your mugger's wallet will keep you relatively safe.