When you think of baby essentials, there aren’t many products that would rank above baby bottles. Baby bottles are a must-have for any parent -- so what do you look for when selecting a baby bottle? Baby bottles have come along way since that one, standard design that was available in the past. Now, you can choose between a variety of baby bottle types including: disposable bottles, angled baby bottles that help promote semi-upright feeding and baby bottles designed for self-feeding.