Freebies&Samples! Where are the best places for them?

Amy • Single mommy to a handsome boy and currently expecting baby #2!
I did it last time with similac but don't know if they'll give me freebies and samples again this time. But I got rid of everything baby because I said I wasn't going to have anymore. Shhhhyeaaaahhhh I'm due march 8th. Lol. So, load me up mommas with where you get freebies and samples!!!