You weren't expecting that, were you?!

It makes no sense to buy a bag that needs to be reused 25 times because on one occasion you forgot your cloth bag. Pay your 5 cents, reuse the plastic, and just remember to bring your reusable bag next time. More.

Or for that matter, if you regularly carry a knapsack or handbag, keep a spare plastic grocery bag handy. It's lightweight, compact, and sturdy.

For clarity: this is not a recommendation to use single use plastic bags every time!