As far as email management goes, this is definitely an ongoing process. I have 490 pieces of email in my inbox at present, and I really need to filter it down to < 100. Omar Shahine, a Mac Business Unit guy down in Silicon Valley, had a great blog posting about this issue a while back.
That must take a while to go through. What is needed is some kind of automatic filter. Perhaps Google GMail is going in the right direction in terms of email. Sounds very promising, I'm sure 1000MB is very tempting to some.