Author Joanna Campbell Slan took up the challenge. Slan is the author of Paper, Scissors, Death, available this September. She lists 101 Ways to Market Your Books on Kremer’s site.
Some are obvious:
Get the best cover possible.
Some less so:
Print marketing information on the inside of that over-run cover and use it like postcards, especially to market to booksellers who want to see the cover before placing an order.
Carry my book with me and read it while I'm waiting in public transportation.
Swap with an author friend: I put up her info on Wikipedia and she does the same for me. We both mention our books.
Check out the entire list.