Can you out-moustache Karl Alzner? (Toni L. Sandys/The Washington Post)

The initiative is in its fifth year and has seen a huge increase in participation each go-round. Last year it got a huge local publicity boost when several members of the Washington Capitals, most notably defensemen Karl Alzner and John Erskine, grew out impressive handlebar moustaches to support the cause.

Interested in participating? Pop on over to the charity’s Web site and register. You can join or create a team, or earn donations on your own. The site lets you track both your moustache growth and your donations. At the end of the month, participants will gather at a number of gala parties to show off their sweet lip sweaters. The Rock and Roll Hotel will be hosting the local gathering Dec. 2 at 8 p.m. Tickets are $20.

Also, registered participants can RSVP now for a free hot towel shave tomorrow courtesy of the expert groomers at the Art of Shaving.

Despite the hirsute theme, this isn’t a single-sex party. The guys behind Movember invite cause-sympathizing ladies with open arms. In fact, there are almost as many incentive- and costume-based rewards on the Web site and at the gala for women as there are for men.

So men, when you wake up tomorrow, shave, and then get growing. It’s a great cause and a really good excuse to grow that epic moustache you’ve always secretly wanted.