Ending today at 11 pm ET, Factory Authorized Outlet via eBay offers the Porter-Cable 6-Gallon 150-PSI Oil-Free Pancake Air Compressor, model no. C2002, for $79.99. Apply coupon code "CSAVE15OFFMARCH" and check out via PayPal to drop that to $64.99. With free shipping, that's $34 below our mention from three weeks ago (which included an accessory kit) and the lowest total price we've seen for a new unit. (It's the best deal now by $34.) It weighs 34 lbs. and features a low-amp 120-volt motor and two air couplers to support two users.

Note that the coupon is limited to one use per account.