Cross crawling will do it. Just a couple of minutes worth per day can have a pretty profound effect.

Eric_G: I read and enjoyed a couple of books by Barbara Sher that you might like. The first one is called "I Could Do Anything If Only I Knew What It Was", and the second is Wishcraft, which hasn't been published for ages, so the author put it up for free at http://www.wishcraft.com/

Kosmik