The iRobot Looj, a gutter-cleaning robot from the makers of the Roomba Vacuum, is now on sale at Overstock for $89.99, the lowest price to-date. This machine rolls through your gutters on treads while its brush propeller blasts out leaves and sludge. It is usable with K-style, aluminum, copper, metal, and vinyl gutters, and cleans out 60 feet in 10 minutes. Shipping adds $2.95 and there's no sales tax (except UT). Spend more and use this $5 off $100 or $7 off $125 coupon.