Eco Friendly Bags for Supermarkets

I think if seventh generation could make a grocery bag that is eco friendly at a low cost they would be able to sell to supermarkets. thing of the oil that would save. Think of the plastic that would cut down. I also believe they sould collect plastic grocery bag and do something with them. even to make people want to do it pay them like 3 cents per bag or something. if someone thinks they can make money from helping the world they are more likely to do it.