Get yourself a reusable bag for shopping.

We almost always bring in our reusable bags when we go grocery shopping, but we are now bringing them in for ALL types of shopping. Please do not forget that the grocery stores are not the only place that uses plastic bags.

If you are still not convinced, please take a look at this SF Gate article.
'Paper or plastic?' The eco-friendly answer is 'Neither - reusable'.

In the article they call out use-less-stuff.com which has some great information, and a great archive of past newsletters.

Please educate yourself, and then tell a friend.