Style Questions | Interview Hair, Man Thongs, and Young Professional

I'm applying to George Washington Medical School and hoping to get an interview sometime within the next few weeks. My hair is well groomed and clean, but shoulder-length. Should I cut it for my interview and get a shave, or is my long hair okay?
Anything that compliments your seriousness should be considered—that includes wearing a proper suit and tie, and getting a shave and haircut. Earlier this year I landed an internship at the White House (but I spend most of my days in the EEOB) with The Office of Presidential Correspondence after having interviewed with a neat, crisp hair cut but I haven't really cut my hair since. Once your in the door, your in the door. You should, however, steer clear of looking like Brad Pitt (left).
Is it okay for a straight-man to wear a thong, given they are properly made for men? And what type of clothes would it be OK for a man to wear a thong?
Once you put on a thong, you instantly become gay! Just kidding—but seriously guys, my belief is that a man's underwear is his own business and the business of his significant other (or others!). Hence the name underwear, they go under the clothes where no one else can see. Of course, once you hit the locker room, your public domain—as illustrated by last weeks Style Questions. Women wear thongs to eliminate panty lines, a problem men should never have. But if for some reason you find yourself wearing a skintight spandex pastel figure-skating jumpsuit then be my guest, throw on a thong. But in such a case, your definitely gay!
A friend of mine is a high-leveled staffer on Capitol Hill for Senator X. We had a discussion the other day about the appropriate cargo-carrying accessory for a twentysomething professional. According to him, a young professional should tote a soft-sided leather satchel instead of a traditional, hard leather briefcase. I prefer the latter, but his view is that it would make him look like a fossil.
One should have a bag of their own. And that's the way it should be—a matter of personal taste, although both bags have their advantages. The hard, leather briefcase protects laptops and other breakable items. Its a much better shield against attacks and was preferred by the Mafia (its real, right?) three to one over soft leather. Soft briefcases are usually more commuter-friendly, crammable, and perhaps even have a bedside manner (afternoon naps, anyone). I have both, although more soft satchel types than hard. I also have a discreet shoulder bag that is appropriate for the office and most business meetings but is also able to accommodate my necessities: phonebook, notebook, books, and gym gear. What I do find appropriate for a twentysomething professional is the youthfulness and independence to resist office-fashion conformity.