Infants develop the fine muscles in their hands before they develop those required for speech, so they’re equipped to communicate with you before they can speak. This site can teach you how.
Visiting in person is one of the best ways to learn about a preschool. Most schools are pleased to have prospective parents visit. If you feel that you are not welcome at the school, that should make you think twice about whether it's the right school for you.
Amazon.com has cases (6 25oz cans) of Similac Advance baby formula for $130 with free shipping. This is a good deal as a single can normally costs $25 at the market.