How long do those 125ml (smallest ones) Avent bottles tend to last for before your baby needs the bigger size? I haven't bought any as I plan on BF for a while at least but I keep getting them in with other stuff I buy. Also how long do the newborn teats last before you start using the slow flow ones?
Obviously I don't know much more than you about bottles (still learning myself), but my mom always told me to use the smaller bottles for juice etc. as the baby gets a bit older (that way you get your money's use out of them).