My adventures into using the intermediate features of word processors actually started a few years ago. I used to take my laptop into classes and would type up my notes there. I'd also play Nethack when class sessions became a little too boring. At the time I used the Abiword word processor to type documents. Through random acts of fate, I discovered that you could have the program mark changes you make to a document. I suspect that this feature has probably been around forever, but I'm a little slow on the discovery of such features that aren't widely discussed.
I haven't really been a great fan of the feature marking, mainly because it is more of a collaborative feature. Still, it can sometimes be interesting to start marking up a document and then displaying the changes. It's actually pretty surprising how much a text can change between versions. You think you're only modifying little things here and there, but eventually things become very different while saying the same general thing.
Here's a page from my latest chapter.
