Canon offers its factory-refurbished Canon PowerShot D20 12.1-Megapixel Waterproof GPS Digital Camera, model no. 6145B001, for $134.99 with free shipping. That's $35 under the best deal we could find for a new one. This water-, freeze-, and shock-proof camera features a 28mm wide-angle 5x optical zoom lens, optical image stabilization, 1080p video, GPS, 3" LCD, and SDXC card slot. A 1-year Canon warranty applies. Deal ends December 31.