Ever wish you could disable your keyboard? For example, so you could clean it without making a mess of whatever it is youâre working on? If youâve got a desktop Mac, the task is as simple as unplugging the keyboardâs USB cable. But if your Mac is stowed away under a desk, unplugging that cable can be a hassle, and if youâre a notebook user, itâs not an option at all. You could shut down your Mac, but many of us are fans of sleep modeâmy Macs are turned off only when Iâm out of town.