I want to start my own little organization to help AID people in need, i need help figuring some stuff out....?

Okay, so what I want to do is hand out plastic bags to people and for them to put in clothes that they don't want or need and give them to me so that I can send them over to a place like [Joplin, Alabama, wherever there's a disaster] and canned goods. But there's a problem, how do I get this to them? Do i have to contact someone in order to start my own little non profit organization? i need help