Thumb Score: +15 Woot! [woot.com] has 4-Tier Power Tool Wall Mount Organizer Garage Storage w/ 8-Slots for $28.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order. Deal history:[list][*]Frontpage Deal at $29…