The word "neat" is a really neat word. Okay so maybe that was a bit cliche... but I just couldn't help myself.
Neat: Undiluted, without water or another mixer, straight, strait up. Used to describe spirits or an alcoholic beverage; "I'll take my scotch neat."
Neat: In a pleasingly orderly and clean condition, tidy.
Neat: A slang word for great, wonderful, fine. "What a neat car!"
Neat: Clever, dextrous or apt. "That's a neat idea."
Neat: The Old English definition is a domestic bovine animal such as an ox or a cow.