Our portable diaper changing pad, has a little pouch for dirty diaper bags. These are totally AWESOME, as you can forget about a really nasty diaper that you have tied up and tossed into your trunk for at least 3 weeks, and it won't smell! Don't ask me how I know that ;-) Anyway, those little bags are expensive to replace, even if you buy them at Wal-mart. So, one week while strolling the aisles of our Dollar Tree, I noticed these doggie bags -- same size, different color, and just as durable, and smell-containing! These do come with carriers, which you could hook onto your diaper bag if you don't have a changing pad that has a built-in pouch. But three rolls for a $1 is a third of the price that Wal-mart wanted for the name brand ones -- definitely money saved!