Look at this creative way Alex Dimond, author of The Mushroom Memos, is advertising his book to his fellow drivers. Click here:
http://booklocker.dreamhost.com/autumn/mushroom.jpg
Alex said: “The cost was $10 and probably can be done at any sign store, while you wait. I love it when we get honks and thumbs up while on the freeways, especially when they translate to reading the book!”