a paper bag in which to take home your paid for but uneaten food from a restuarant to give to your pets (often not given to the pets at all)
A doggybag sounds on the surface like a good idea.
Lets not waste good food, give it to our household pets.
recycling - green - modern - intelligent
Think a little more deeply about it and you discover that it is a perfect example for what is wrong with our western, modern, industrialised, profit run way of living.
doggybag's exist because we cooked too much food . They are there to salve our conscience after we have just paid for a meal and not been able to finish it.
There are no doggybags in many countries around the world. The concept of a doggybag would be alien to them and yet for us it is a normal object of daily living.
It is a marketing ploy, a branding tool and more than that, a con trick
"waiter, I am sorry the steak was very good but there was too much on the plate...could I please have a doggybag to take it home for my dog? "