It's much better for the environment if you bring your own reusable grocery bags from home when you go shopping. If you're in need of one, here's a clever way to make your own out of a large rice bag.
This custom creation from Instructables user jewelianne is easy to make at home, and doesn't require any special tools. All you need is some scissors, a needle and some nylon thread. Even the straps are constructed from the rice bag's sturdy material. Once you have it all put together, you'll have a durable shopping tote bag that can carry plenty of weight and is easy to clean. You can find the complete instructions at the link below.
Reusable Grocery Bag Made From a Rice Bag [Instructables]