This Travel Tips might be useful wether you are visiting Bali or other destionations

Pickpockets can completely ruin a trip to a foreign country if you aren't prepared. When you lose your identification, you could even get stuck in that country until everything gets sorted out.

To make the process as easy as possible, you should keep photocopies of your credit cards, your passport, and any other forms of identification. Keep copies at your hotel, and leave separate copies with somebody at home. Even if you lose everything, your friend can fax you the information you need. It's also a good idea to prepare a list of emergency numbers and addresses before your trip. Find out where your country's foreign embassy is, and write down the local police station's number.

<article taken from travel.howstuffworks.com>