I think couple of people have taken my comment the wrong way. By saying I would feel guilty bringing just a carry on because that would mean we didn't bring anything to give away, I meant we didn't anything to give to the children. In the past we have brought toys, school supplies, back packs and musical instruments.
Cash works for everyone else. But I hate seeing people handing cash to the kids. It's like teaching them to beg from tourist.
No offense was intended to the people that just being carry on bag. I was speaking only of my own feelings.