i can't change the background on my work pc otherwise i would for shure
i bet once you established yoruself as a people photographer though there could be some big money in it... what with highschool pics wedding pics.. all that jazz..
the big word there is 'establish'......most schools etc use the same company all the time.....weddings are the most competitive.......i know a few people that do them,but they dont make much out of it because so many do it