I would tackle this exactly the same way I would tackle getting out of debt.. It's a little different because you don't have anything to carry to the 'next' thing on the list like you would when you pay off that first debt.
Here is what I do.. I go down and put them in order of how much needs done with each project.. the least to do on one end of the line, the most to do on the other..
Then pick up the project that is closest to being done, and finish that. Completely.
Since you've already put them in order, you will already know which one you're going to work on next.. So pick it up and finish that one, completely.
After you get the first couple done, you'll be on a roll.. It works every time!! Let us know how long it took you to work your way though your 'to do' projects!!