DrivenGPS via eBay offers the refurbished Garmin nuvi 2639LMT Advanced Series 6″ GPS System which includes lifetime maps and traffic, for $116.95. Checkout with PayPal and apply coupon code "P20FINDYOURTECH" to drop it to $93.56. With free shipping, that's $43 under the lowest price we could find for it new, although we saw it for $2 less three weeks ago. It features a 6" LCD, lifetime traffic and map updates, and Foursquare POIs. Deal ends May 18.

Note: A 1-year Garmin warranty applies. Also, this coupon can be used only twice per PayPal account within a single transaciton.