The primary election is not over.  The outcome is not in as much doubt as the media might like us to think, but there's still plenty of fighting to be done, and if you're going out to canvass for either candidate, more power to you.
In the meantime, however, the DNC is putting together a pretty good sequence of ads that do what we would be doing if we had a nominee.  They define John McCain. 
If we don't do this now -- if we allow McCain (and his MSM admirers) to define his candidacy instead -- our nominee's arguments are going to have to overcome a built-in credibility disadvantage.
So please, whichever candidate you support, do two things:
1) Rec this post.  It's boring as Cream of Wheat, but almost equally good for you.  Apologies if the linebreaks are all screwy.  I'm writing on Safari.
2) Donate to the DNC.http://democrats.org/fundiraqad
I just gave $75, on top of an earlier donation of $75.  It's more than I can afford.  But a McCain victory would be a lot more than I could afford.