The Phillips Avent Baby Bottles were all the rage when my now-5-year-old was an infant.  Being a breastfeeding mother, I bought these bottles purely as a back-up for an occasional night out on the town sans baby.  Upon use, I was quite confused as to why these bottles were so popular.  The nipple shape is typical- nothing special.  The bottle is short and wide, which only adds to the incidence of excess air/gas for baby.  The worst part of these bottles is they are SO leaky!  It never fails, every time I use these bottles, I have to perform my "shake test", a test I formulated after many...