if you can't afford organic produce..
there are some non-organic fruits and vegetables that are "safer" to eat. These either have very thick skin to protect the fruit inside or are not sprayed as heavily with pesticides because they don't attract as many pests as others. You should still wash some of them, except the ones with the very thick skin.
sweet peas (because the pods protect the peas from the pesticides)
THE DIRTY DOZEN are fruits and vegetables that are heavily sprayed with pesticides:
sweet bell peppers
more about this at: