I've seen this list a couple places, but it's worth passing along. Everyone's on a budget, and the more information we have the better our choices, right?
Top Ten Most Contaminated Foods
8. Winter squash
9. Green Beans
Kind of depressing that some of the healthiest and most kid friendly foods we enjoy appear on there. So if at all possible, buy the produce above from local and/or organic farms or markets. Just focusing on those ten things will drastically reduce the pesticide and chemical contamination in your food!