You need to do a bulk mailing. You think, oh no problem, I'll assemble some volunteers, stuff some envelopes, send this out cheaply and there you go. You try this once, it goes horribly, horribly...

I found Adept here at Yelp, so it seemed only right to report back. My experience was not as pleasant as Sean's. I hired Adept to print and mail a holiday appeal for the nonprofit I work for....