Wherever you have a University, you'll have students who desperately need to photocopy things, bind and file papers, and otherwise need basic office services.
Campus copy center has been helping Penn students kill trees for decades. Seriously, though, they have an above average level of quality and service: the employees actually seem to know what they're doing, which isn't always true for the chains like Kinko's, and the prices are quite reasonable, especially considering the captive market next doors.
They also offer shipping services, in addition to their photocopy and binding services.
more