a) I sold my first item on RedBubble the other day. Oddly enough, it was a "Poop Back and Forth" t-shirt from the movie You and Me and Everyone We Know and not one of my photographs. Ah well. (Here's the other one.)
b) Omitted until further notice.
c) These look fun. Maybe if you aren't really into photography (or even if you are), these short little video portraits sound like a nice (short) way to document times: Long Portraits.