I have a friend that makes his rounds of the supermarkets around here and gets the discards with expired sell by dates and gives them to the people in the tent city that is around here. Its still good food, it just didn't sell.
The stores used to toss the stuff into the dumpster, but now they just stack it inside the back door and wheel it out when he shows up. He and the guy that is building these little shelters deserve a special place in heaven.
For those of you that find these little shelters weird or ugly, think of them as a starter RV :)