@Cycloptichorn,
Go Dennis G and all the others like you!
I did some paperwork on election day, it was interesting to see the documentation for canvassing. (I was supposed to put sheets that had pink highlighting in one pile, and sheets without in another. The sheets with pink highlighting had some reason they needed to be revisited -- someone had moved, that sort of thing.)
There were lots of comments ("Obama sign in yard," "Obama pumpkin by front door," "Don't come back! Says he's been visited several times and is getting annoyed"). The raw data indicated whether there had been contact, strength of person's support for a given candidate, whether they'd already voted (early voting), whether they had been persuaded, etc.
It was an interesting insight into how the whole thing worked. Definitely looked effective. (Lots of "persuaded him!" notes, too.)