"Bag-and-tag", "pay-per-throw", "polluter pays", it's all the same idea:
Impose Pigouvian taxes on things that cause external damage and society will be better off, because raising marginal costs creates an economic incentive for people to reduce quantity.
Here's a writer in Washington DC lamenting the lack of pay-per-throw trash disposal.
A related issue: plastic grocery bags.
What do you think about this approach versus this approach?
Is there another way?