I don't know about you, but I'm seeing an increasing quantity of spam coming through the email box at the moment. Despite my best efforts of updating custom spam filters and doing a lot of analysis to determine the trends so that I can write those rules, new spam keeps coming in quicker than I can handle it.
Today, though, I tried a different track. I've been using server-side filtering (through the Sieve tool offered by Cyrus, in turn through Mac OS X Server) for years to organize my folders and help me prioritize the email comes in. By placing the mail I want quicker access/responses to in specific folders, I can safely ignore the mailing lists, order confirmations and other non-priority mail.