One of the Mommy's I had made the portable diaper changing station for, has informed me that this is simply the BEST thing to use outside their own house when they're grilling, swimming, etc so she doesn't have to run the baby through the house to change a diaper. Hmmm, here I was thinking it could be used for those short runs or while eating out, etc where it would be harder to carry the full blown diaper bag, but this sounds good too!  The pattern can be found at patterns2go.com  NOTE:  EVERY mommy I've made this for has LOVED it.