Since I've been talking about this fascinating visualization tool for the last day or so, I might as well post the link here. Visual-literacy.org has an extremely useful Periodic Table of Visualization Methods that is a great way to visualize your way through a problem in multiple modes when all else fails.
Is there anything like this on the market for musicans and their practice issues? As a matter of fact, yes. Hal Leonard has a 6-page folio for piano students entitled The Piano Student's Guide to Effective Practicing by Nancy O'Neill Breth, an excellent tool worthy of a closer look in a future posting.