This bag is amazing. Got it originally to use as a reuseable grocery bag. It fits in a little matching pouch it comes with and I put it right in my purse.
...Okay, so I usually forget to bring it to the grocery store. BUT, it has served me so many other times. Weekend trip, beach bag, toting things to and from school (I'm a teacher!) -- it is durable, strong, and can handle things that other bags can't.
And I already mentioned it, but seriously, the *best* thing -- when I'm done, it gets folded up and slipped right back into its little pouch. That's my kind of bag, right there.