Buying Produce - Organic Versus Conventional

I have been reading a lot about longevity lately (more podcasts and blogs to come on that topic) and it has me eating more and more vegetables. I buy organic as it is available but like to keep the "Clean Fifteen" and "Dirty Dozen" in the back of my mind. 

Those lists vary from year to year but mostly look like the following:
Clean "Fifteen" (okay to buy conventional)

1. Bananas
2. Oranges
3. Tangerines 
4. Grapefruit
5. Pineapple
6. Melons
7. Plums
8. Kiwi
9. Blueberries
10. Mango
11. Papaya
12. Broccoli
13. Cauliflower
14. Cabbage
15. Mushrooms
16. Asparagus
17. Tomatoes
18. Onions
19. Eggplant
20. Peas 
21. Radishes
22. Avocado
23. Sweet Potatoes

Dirty "Dozen" (better to buy Organic)

1. Apples
2. Pears
3. Peaches
4. Nectarines
5. Strawberries
6. Cherries
7. Raspberries
8. Grapes
9. Peppers
10. Celery
11. Green Beans
12. Potatoes
13. Spinach 
14. Lettuce
15. Cucumbers
16. Squash
17. Pumpkin

​I created this visual representation of what you should buy Organic versus what is okay to buy conventional. I believe in supporting organic farms and in some regions of the US (mostly the pacific northwest) the cost of organic and conventional is close to the same because so many people buy organic - how cool is that???