I haven't tried any of the tools already mentioned, but figured I'd share what I
have used.
- The firefox re-pagination add-on makes it possible to get all pages of a story onto a single page.
- From there it's easy-peasy to use dotEPUB, conveniently bookmarked on my toolbar, to convert it to epub. It does a surprisingly good job at weeding out all the extraneous stuff and just compiling what I actually want to read.