I am a very busy mom with three kids, one of wich is a special needs child. I look for any way to try to make things as convenant as possible without compromising my kids health or happiness. When my third child was born My plan was to breast feed. Once I got home I had help from my mother in-law. She decided she wanted to let me sleep in after about a week of being home, however I had not purchased any bottles or even a pump. Luckly there was some sample formula from the hospital, and bottle sample from motherhood maternity. The bottle was the playtex 4 oz. drop in bottle. My daughter had no gas, which is very tipical for a baby switching from breast milk to formula. She also took to the nipple very well wich is supposed to be most like "mother". It is not only great with preventing spit up and gas, but is is very convenant. Because the inside of the bottle is a plastic drop it, you can just take it out and toss it. The refills are so unbelievably cheap, and with the wide nipple it is easy to clean. There is no special bottle cleaner needed, and you really only need to buy two or three of the bottles. It really is a great was to save time and money. You and your baby will love it.
NOTE: the reviewer indicated that they are affiliated with Playtex Drop Ins Baby Bottle