I do a lot of writing every day. Not the writing I want to do, unfortunately, but I probably end up with between 7K and 10K a day worth of written material. When I have to go through and make global changes to documents, "Find and Replace" is a huge time saver. But as you all know, Find and Replace can make changes you didn't want if you aren't using it carefully (or even if you are). So I go through a printed version and proofread.
Given how much I use Find and Replace, I found this story particularly funny:
War and Nookd :: The Future of the Internet — And How to Stop It