Their answer to that:
Using trashcans that have to be emptied less often is another innovating way of saving gas in our vehicles.You can find more info here. I thought I should add a couple answers to some obvious question:
The trashcans are bolted to the ground and weigh 300 pounds. They open like a mailbox, preventing animals and people from getting at the trash. Big Bellys send out a wireless notice when it’s time to empty the trash. They also seal themselves once they’re completely full, so no one can stuff more trash into them.Personally, I find these things fascinating and it makes me glad there are so many people working on these things because if it were left up to me, I would have never thought of this.
Thanks to my husband for this find.