It all started with red lights. The Nautitech 542 catamaran Greenboat 1, on which I spent nearly three weeks crossing the Atlantic, had rope lighting hidden in the cabin roof. I found that the diffuse red lighting it provided was great on night watches. When I found out that it was very inexpensive and more or less weatherproof I decided to put some around our boat as foot lighting. As it turns out, the RGB (red-green-blue) LED light strips are about $40 for 5 meters. They come with a remote and a controller (see "Parts" on the last page of this article). My wife, Jen (an editor at Cruising World) was away at the Strictly Sail Chicago boat show when the supplies I ordered arrived, and the temperature in Rhode Island, where we live aboard year-round, was in the single digits, so the kids were unable to go outside and were climbing the walls. I plugged in the power supply on a lark. Before I knew it, the kids were dancing to Adele and burning off all kinds of energy.