Paper or Plastic?

I have approx. 1 billion reusable bags. Really. I have many from my mom, and a lot that I've purchased in the past year. With all of these bags, I still manage to leave them in my car or forget to put them back in my car when I actually use them. After reading this article from treehugger.com, I am reestablishing my commitment to ALWAYS have reusable bags ready to use in my car. I realized already that both choices were terrible, but seeing figures makes it more terrible to me. I don't ever want to have to use another paper or plastic bag. I think I'll get one (or two) of those reusable bags that zip up into a teeny little thing so that I can keep them in my purse.