I know the perfect answer is, No Thanks, I brought my own. But, I've been to the grocery a gazillion times after the stores started selling reusable bags and I can't say I have seen more than 2 people actually use reusable bags for their groceries. I have reusable bags but I have gone to the grocery a lot of times when I either forgot my bags or I only had 2 bags when the groceries I bought required at least 5. I normally would then go with paper because I thought it is the more environmentally friendly alternative. But then I happened on this article:
http://www.greenfeet.net/newsletter/debate.shtml
and now it's looking like paper is no better than plastic. So, I'm throwing this poll out there just to see what everybody else thinks.