registry must haves and recommendations

Julie
My husband and I are going to register Monday. I need some recommendations on
 
Car seat (do I get one that has a matching stroller that it fits into or buy car seat and stroller seperately?) what brand? 
Breastfeeding supplies and regular bottles supplies
Bouncer or swing?
Type of diapers/wipes
Baby monitor (would like one with wifi)
Any other registry or baby MUST HAVES? 
I am a first time mom and have nooo idea what to look for!