This cover has got you covered

Now that you've fully outfitted your home with trendy Decora switches, you're probably finding that the gaping holes in your drywall are detracting from your home's new-found opulence. Not to worry, this cover will do the trick! Leviton actually makes a costlier version of this that is nylon and allegedly indestructible but I've managed to destroy plenty of them so this one will work just fine. Just don't over tighten the screws or smash it in a fit of rage as you discover that the previous wall plate had been hammered into your wall instead of neatly screwed in and you'll be okay. Even if you can't hold back your Hulk-like rage, you're only out less than a dollar on this one. Rage on, my friend.