My brother Mike and my sister-in-law Hanna quit their jobs and are traveling the globe for a year. (I know, I'm jealous too.) You can follow their adventures on their blog: www.80liters.com.
80 liters is a reference to the fact that they are traveling for a year in 2 40-liter backpacks. By comparison, here's what it takes for us to get out the door. For a day.