Is it just me or are these commercials really stupid?
http://www.youtube.com/watch?v=ro-7D8eVy1I&feature=related
http://www.youtube.com/watch?v=-H4MACTVk0g
Frankly the whole idea that carrying a guy around on your back is making your life easier needs some work. Also notice they are using the same lecture hall with the same stuff on the blackboards for both commercials, but different lecturers.