I have successfully gotten my work email under 40mb. We have a 50mb limit and for the past few days I have been aggressively deleting, filing and saving emails as html or text documents to get my in box and folders under control. I am excited!
I also found out that I can post to my blog from Google Docs. That's really cool, especially since it means that I don't have to log on to blogger...when I'm at work.