Which foods to eat organic?

I try to eat organic foods as much as possilbe, but that is not always possible.  I do try to stick to eating organic when foods are high in pesticides. 

I found a wallet guide online to help you when you are shopping.  It lists the 12 fruits and vegetables most and least contaminated with pesticides.  If you stick to this, it is a great start!  Here is the link: http://www.ewg.org/sites/foodnews/pdf/walletguide.pdf.