Megabus.com is giving away free bus tickets to the first 200,000 customers that enter code GOFREE on their site. If the graphic changes, wait until graphic number "1 of 8" about the free bus tickets appears again then press the pause button in the lower-right of the graphic. Travel must be between 4-Jan-2012 and 1-March2012. Megabus offers bus travel routes in the Eastern and Central US. Only a certain number of free seats are available on each bus.