http://www.helium.com/knowledge/8622-why-shoppers-should-pay-for-plastic-shopping-bags.xml Helium.com > Trash & Recycling > Why shoppers should pay for plastic shopping bags en-us Copyright Helium.com Fri, 11 Jul 2008 01:29:38 GMT Fri, 11 Jul 2008 01:29:38 GMT