If you use bottles, these bags are a must have. They are amazing and easy to use. You simply take apart all the dirty Dr. Brown’s bottles, rinse them off with soap (I like to give everything a quick scrub with the bottle brush for added peace of mind), stick the parts in the bag, add 2 tablespoons of water, and microwave for 2 minutes. The bottles come out steam cleaned and perfectly sterilized. Each bag can be used 20 times. They are great for traveling, too. I buy them in bulk on Amazon.com, though I’m sure you can get them at babies-r-us or anywhere else they sell baby supplies. Medela makes a sterilizer bag as well, and I find they work the same.
If you want to order some, I suggest you give them a try HERE