I walked into a Babies R Us yesterday and realized that I have NO IDEA about bottles. There are so many options, so many designs...and I haven't a clue where to start. Please help!

Baby is due in August...and I plan to breastfeed, but will need to return to work at around 12weeks.

1) What brand/flow/design worked best for you when switching between breast and bottle? Did you strongly prefer glass over plastic? Any reasons?

2) Did you get multiple different types to try? Get a couple of types and expand from there as necessary?

3) Any other tips for how/when to start bottle feeding a breastfed infant?

Thanks in advance!