Charities?

I know charities do a lot of good work and I wish that I could do more to help a lot of them. I would love to cure cancer, send an ill child to summer camp, buy bullet proof vests for the police, etc...
But, I have a pet peeve when it comes to charitable organizations - unsolicited address labels! This bugs me because these "charities" are spending the generous donations of other people to solicit more money. The money being spent to print and mail these address labels (note pads, magnets, etc) could be spent to achieve the mission of the organization. I would love to know the number of envelopes sent out every year containing address labels that never get returned containing a donation.