The majority of us Mamas have a Diaper Genie. While you do need to buy special bags for this diaper-eating machine, you can easily find them at your local Target or Walmart. We find that this is the best brand for keeping the smell contained. Other brands we have tried are the Diaper Champ and the Diaper Décor, but we found them to be much smellier than the Diaper Genie.
Those Mama’s with little boys might want to get a pack of wash cloths to cover your little one’s unit while changing him, as they will be sure to pee on your almost every time they get changed – something about that fresh air on their junk that makes them go!
We also recommend picking up some Especially for Baby disposable bags. When you are on the go these are great to have (much like doggie poo bags) to put soiled diapers in to block the smells.