Web typography is still in its infancy and still leaves a lot to be desired. Bill Hill is working hard on improving the experience of reading type on screen. A great set of interviews from Channel9.
Scot Hanselman (and others) have a download link to the first chapter (more of a section at 1850 pages long!) totally free and totally cool. Get the NerdDinner.com walkthrough here.
You should be saving your work on a regular basis in case of crashes, but for those who forget to cmd+s like clockwork EverSave seems like a great idea.