When should you spend more for organic?

When you're shopping for fruits and vegetables, it's not always easy to convince yourself to spend an extra $2 a pound for organic produce. Sometimes you wonder whether it's worth it. A good way to make that decision is to spend the extra money for organic produce for the types of produce that tend to have a higher concentration of toxins (pesticides). I can easily remember that you should always buy organic apples and strawberries, but it's hard to keep track of the rest. It's nice to see that Food News has produced a downloadable wallet guide for produce showing the 12 most contaminated ("the dirty dozen") and 12 least contaminated items. Here are the lists:

12 Most Contaminated	12 Least Contaminated
* Peaches * Apples * Sweet Bell Peppers * Celery * Nectarines * Strawberries * Cherries * Pears * Grapes (Imported) * Spinach * Lettuce * Potatoes	* Onions * Avocado * Sweet Corn (Frozen) * Pineapples * Mango * Asparagus * Sweet Peas (Frozen) * Kiwi Fruit * Bananas * Cabbage * Broccoli * Papaya