You don’t need electrical know-how or have freshly renovated digs to get some of the latest built-in conveniences at home. One easily solution for adding USB charging or illuminated ambiance to your old wall outlets is to spend an estimated 60 seconds worth of effort installing one of SnapPower’s click-on products. The company’s Guidelights have been providing a late-night glow to customers with just a few twists of a screw and the company’s signature snap-on installation — no wiring involved. Now, SnapPower offers the same quick and easy access to built-in USB charging, without blocking access to existing outlets. This week, we’re passing on a 3-pack of SnapPower’s easy-to-install retrofit products for one lucky Engadget reader. Just head on down to the Rafflecopter widget for up to three chances at winning this tiny bit of built-in luxury.