I think it would be very useful if Microsoft Word, or whatever word processor I use, had a built-in thesaurus that would bring up a list on the side somewhere everytime you typed a new word in the document. There's a thesaurus in Word now, but you have to use it specifically, it doesn't thesaurize on its own.

I think this feature would aid a lot in creative writing.

Have any of you heard of something like this?