Northern Tool discounts a selection of items for its Fall Power Sale with prices starting at 99 cents. Where available, opt for in-store pickup to avoid shipping costs, which start at $5.99. (Free shipping is available for select items.) A couple of best bets:
BatteryMINDer Plus Charger/Maintainer/Desulfator for $29.99 $24.99 + pickup ($20 off)
Klutch 3/8" x 50-foot Auto Rewind Air Hose Reel for $89.99 + $0 s&h (pictured, $10 off)
These places give you cash or store credit for books, movies, music, magazines, phones, computers, other electronics and more.