My wife isn't a member of a group but she prepares reusable grocery bags with socks, mittens, toques, toothbrush and toothpaste, soap, and other necessities. She has men's and woman's packed accordingly. Also in each bag is a Ziploc with a $20.00 bill in it. She doesn't go looking for homeless but always has these in her SUV for when she happens to stumble onto one. Not sure how much good it does but it makes her happy to do it.