Looking to score a deal on Verizon’s already discounted selection of certified pre-owned devices? You have until December 29th to do so. We’re reporting a little late on a 7-day sale that sees some good savings on used and refurbished items. The Samsung Galaxy Tab 10.1, for instance, is marked down $80 to $349.99 on a two-year contract for the 16GB model. The 32GB version is going for $449.99 during the same sale. A pre-owned HTC Thunderbolt will cost you only $69.99. Deals are to be found on nearly every item knocking prices all the way down to free for select handsets (the Droid Pro, for instance). Since there is a limited stock of certified pre-owned devices it is best to act quickly before time (and inventory) runs out.