Business cards w/ the candy I also think is quite tacky...
Your giving the candy & cards to the kids, not the parrents... Odviously thoes kids dont make the decision as to tho mows the lawn. Just like how I hate thoes people who give out political fliers to little kids at parades... The kids cant vote, & will most likely toss em on the ground.
The idea of adress lables to seal the candy bag I think is great.