If we are going with symbols, I think OPT is the only really hard one: SHIFT is obviously a white upward arrow. CTRL is quite commonly written as caret. CMD is represented as a diamond on many keyboards (inspired by Sun). OPT is always labelled Alt or Option, only Apple has a symbol for this. Apple's option symbol is quite logical, though, when you think about it. I also just learned that the Apple II had "closed apple" and "open apple" keys, i.e. filled and not filled logo. -Truls