Your high school days are long gone, but remember to project as much pain, misery and depression as you did back when the jocks and stoners bullied you between classes. Being a grown-up doesn't mean you have to act grown up, at least not if you're an MLS-level librarian. Make sure you don't sell out to the man by wearing grown-up attire or by letting a professional stylist cut your hair. Do it yourself, you radical hip thing, you! Make handbags out of random bits of felt, denim and something shiny (for that 'found' look) and cut your own hair. Don't cheat by buzzing it with clippers, though, use scissors and cut the hair at medium length. If you're male, only wear the most horrific glasses frames. This will insure that you don't accidentally get laid more than once a decade.