Yesterday the power windows decided to quit working again. They do this about 3 times a summer. Everything is working just fine. Then, out of nowhere, they decide to quit working. I have to take the side off the center console (I need to put velcro on it), take the plugs off the window switch, emery them, put it back together. They work. How can I take this to only a once a year routine? dilectric grease on the switch?