Socks u can never have to many lol
Get a bottle of gas drops. There is nothing worse than a gassy baby in the middle of the night and not having any.
Burp rags, lol. My daughter spits up a lot.
Wipes too. Not so much diapers since you don't know how baby will react to a certain kind.
I bought a few newborn packs before my little girl was born.
Bottles if you're bottle feeding... washing bottles all the time is annoying.
Socks too... They always disappear lol
Nappies, nappies and more nappies. Also everything in the above comment too :)
I think bout the only thing u can stock up on are hypoallergenic sensitive wipes u never know of baby will have an allergy to something until its used with em and I always get slightly bigger clothes for my son as they will only grow. If ur bfing though lanolin cream is great to have handy although I might try coconut oil this time for nipple soreness