I've officially packed and left NYC to begin January 2013 World Race!
First stop is Washington DC (for launch)!

And my pack only weighs 30-35 lbs! 

One big tip for packing a years worth of possesions into a backpack?-
1) get stuff sacks (especially for clothes) and rectangular or square shapped bags to hold everything else. 
2) stack everything up in your bag as if you were playing Tetris!! Irregularly shapped items leave empty spaces and is simply not efficient!