Just remember if you wash your own, that the climate is very humid and clothes take a long time to dry. A hair dryer is useful to carry along. TV standards are the same as the U.S. Click here to view the page of hotels we like to stay at. Don't eat or drink items which you think might have been washed in, or contain, unpurified water. If in doubt, ask.
Most restaurants catering to tourists use purified water to wash vegetables, make ice cubes, etc.
Don't get over-tired or dehydrated. Always carry a bottle of purified water and drink lots of it. If you buy food from street vendors, it may be delicious, but avoid it if it looks as if it has been sitting out in the open for a while. Money Exchange rates may vary from day to day. The best and most flexible service is available from Bancomer which will exchange cash, travelers checks and charge card debits.