This is something to remember: Be sure to wash all fresh fruit and vegetables before eating. This includes melons, salad, carrots and potatoes.
I know this is a pretty basic idea but you just never know who has touched or exactly where your fresh furits and vegetables have come from. People touch the produce before they buy, and you may not see them touching it, but where has their hands been? I personally have seen produce dropped on the floor at stores and customers have just put it back on the shelves; The floors are dirty, people walk on them. Fruits and vegetables come from farms, and are transported. It is just good common sense to wash things before you prepare them to eat.
Random Idea Wash your food before you eat it.