Congrats!
Our twins are 2.
Firstly, have realistic expectations of yourself. Twins is hard. The newborn stage is pretty savage. It starts hardest and gets continually easier, but the first few months are a bit of a killer.
Establish a routine. Don’t be shy about asking for help. Be kind to your other half, even when you are so mad with exhaustion that you think you hate them. And be kind to yourself. It’s hard, but you can do it. And it gets easier.
You don’t need two of everything, but you two of lots of things. Moses baskets. Rocker chairs. Car seats. All that.
Biggest investment is the twin buggy. We spent months on this, and finally plumped for the bugaboo Donkey. It’s very expensive, so maybe look for second hand if money is a concern.
TWIN FEEDING PILLOW. You can get one on amazon. Honestly, this was our BIG “cant live without” item for the first 6 months.
My wife decided against breastfeeding for the twins. If you decide the same, definitely go for LOADS of bottles (we bought 20) and a perfect prep machine for making the milk. Personal choice obviously. Bottle feeding meant I (the dad) could share he load.
Assuming you’ve got an involved husband/partner, get him to take as much time off as possible. Consider shared leave. I took the first 3 months off and I’m glad I did.
Be prepared for complications. Twin pregnancies are naturally high risk. We got to 36 weeks before a planned induction as one of the boys hadn’t stopped growing. Both had a few days in incubators and one needed surgery under general anaesthetic. I’m not trying to scare you - maybe yours will arrive uneventfully. But twins tend to be complicated, so maybe just get your head around the possibility of a scare along the way. (Our boys are perfectly healthy now).
Once you’re all home, GET OUT every day. Baby cinema. Baby groups. Whatever. Just getting out every day in the first few months of chaos will make you feel human again.
Good luck! Twins is a wonderful thing. I love mine to bits.