what is the best stuff to use to clean a controller (any controller really)? I have a switch controller that has a streak of paint near two of the buttons, probably from use. I'm using the smash bros. controller btw, and it's in the grey area. there are black dots of paint near two of the buttons. I tried using electronic cleaner on some 360 controllers, and it ended up making them sticky, so I don't want to do that again. it didn't fix the problem either, but now that they're no longer sticky thanks to the air.
