A) Lawyer.
B) Five miles round trip.
C) No shower, so depending on weather I just don't change and hope for the best (fall, winter, and spring), or change clothes and clean up with unscented baby wipes and a pit stick (summer). I'm a law clerk for an appellate court judge, so I get away with dressing on the more casual end of business casual most days, which helps. The short commute time and fenders on the bike also help me stay relatively clean and dry.
D) In the sub-basement of the building I work in.
E) All 4 years of college but then stopped. Just started to commute again this past May after a 5 year break.
F) Year round, every day. Except for heavy snowy days.