Old make-up brushes are great for cleaning keyboards. A large fluffy brush (with a longish handle) is great for getting crumbs, dust and other messes off the flat surfaces of the keyboard. Thinner, flat brushes can clean between keys, without depressing the keys. Also remember to flip the keyboard over and lightly tap the back to dislodge what’s gotten under the keyboard.
– JM, Bitch with Wi-Fi