The plastic bag was a bad invention. Here we are some 50 years later or whatever, and we find ourselves eschewing the need for the plastic bag due to environmental concerns. Now we say, "no thanks I don't need a bag", I'll carry it without. Why didn't we do that from the beginning? Stupid. We ran in a circle on that one. Think about it. We spend all this time putting groceries into bags, then we get home and have to take them out. Why not just pick up your shit and put it into a cart and unload it into your car and save yourself steps. Plastic bags don't get you anywhere, especially if the consensus is that they are wasteful as well.