The Rösle Garlic Press (Amazon link)

It reliably crushes even two cloves at once. You don’t have to keep cleaning it as you use it. And when you’re done, you swing out the grate and put it under the tap and rinse it off, done. None of that “is all the garlic out yet?” stuff, and it doesn’t have one of those plastic “cleaner” thingies that will promptly get lost. HIGHLY RECOMMEND.