LET TIGER TYPE IT FOR YOU

If you're typing a long word (like existentialism or existentialisms), and you're feeling particularly lazy that day, rather than typing all the letters yourself, just type the first few letters then press the Escape key on your keyboard. A list of your most likely choices will appearjust scroll down to the one you want and click on it. This works in applications like Apple's TextEdit, Stickies, etc.