Not only is Blanket America (for every blanket sold, they donate a blanket to charity) an amazing organization that does vital charitable work, they are also a business that has one of the best motivations for purchase (BUY 1, GIVE 1) as well, they are a great example of a simple yet genius businesses idea.
Bill Clinton with Blanket America's Mesh Gelman
Here they are in Oklahoma distributing blankets to poverty stricken residents:
They’re business idea is so solid they get celebrities to promote them. Here is Lisa Edelstein from House promoting Blanket America: