Chances are, if you've got milk, you've got a plastic or paper milk carton that you have to recycle when the milk is gone, but the spirit of the milkman's glass bottles lives on.
Burbach's Countryside Dairy, which is based in Nebraska, has a great program for selling milk to stores around its area. The dairy puts its milk in glass bottles, which the stores then sell. When the customer is done with the milk, the bottle can be taken back to the store, which returns it to the dairy to be used again. For more information about the dairy, click here.
This operation model deserves replication. Selling milk locally decreases the carbon footprint of transporting it, and reusing the bottles is better than even recycling.
If this kind of program were available in more places, I think we'd all have reason to smile with our milk mustaches.