My DH loves doing consumer research and bought Monster surge protectors for our use. The ones he put on our big screen TV last spring cost $189. I couldn't believe it BUT he stays out of my chili so I do the same. (There are cheaper Monster brand protectors. . . I know how to do research too! LOL) I have a surge protector on my serger and sewing machine but both of them are purely mechanical so they remain plugged in always.