Usually you get tons of free Diapers and samples from Nurses who took care of baby and the wife. Be nice to them you will get good freebies. If you are not given free baby samples at hospital here is how to get all those free stuff from this link.
Free stuff listed –
> Sign up for Huggies free samples, Potty Training Success DVD
> Playtex Drop-Ins Original Nurser System, which are BPA-free
> Free 64-count popup tub of Huggies Soft Skin Shea Butter Baby Wipes!
> Free Enfamil Lipel diaper bag