cheap remote control for lights and stuff

I bought a set of THESE 120 volt remotes a few years ago for my Christmas lights. Now, I take them along in the RV and use for outside lights and stuff I don't want to get up to turn on/off. They won't work for in wall lights, but will work for anything that plugs in. Pretty much waterproof. We use them for outside Christmas lights, and my DW uses it for a water fountain on our deck.