San Francisco has banned the use of petroleum-based plastic shopping bags. What a great idea. Let's do it here. There are way more plastic shopping bags in trees and bushes and everywhere else making Milwaukee look scuzzy than there are, for example, shopping carts.
Perhaps a tax would be the better idea. Ireland levies a 15 cent tax on each plastic bag, which cut their use by 90% and raised millions of euros, according to the BBC.