Guerrilla office tactics

Lifehacker asks about Guerrilla office tactics. I have one I can share right now, which is how I cut down on all that bacn coming from different social networking sites. I have a filter in Gmail with the following in "Has the Words":

from:(facebookmail.com OR linkedin.com OR flickr.com) OR subject:([Flickr])

Whenever I start getting mail from a new social networking site, I just add it to this filter. This mail is labeled as Bacn and skips my inbox.