http://www.lib.utexas.edu/maps/world_maps/world_pol02.jpg
Take that into Photoshop, color all the places you've been to blue, color all the places you want to visit green, color all the places you wouldn't mind going yellow, and everywhere you don't want to go red.
First off, visit the green places. You want to visit them, remember? You will never get this kind of vacation time again, make it count by doing what you WANT to do.
If you find that you've covered it all before the year is up, start tackling the ones you colored yellow (who knows, maybe they should be re-colored green by then, or even red.)
Regardless of whether you have a year off or not, doing the coloring thing is kind of interesting. My friends and I all did it and we have the maps hanging on our walls. It's kinda inspirational, or something.
Or, you could just travel Canada and the States and see how many ATOT members you can meet in a year