My son was born almost 10 months ago and in the months leading up to his arrival, my wife and I spent hours figuring out the best stuff that we would need. There are many types of lists out there, but here are the things that worked out well for us.
This was the one purchase my wife let me have total say on. After reading reviews, the Britax B-Agile was the best solution in terms of cost and quality. You will want the full system as it comes with the stroller, carrier and base. The base is the most important piece of this. While you can use a seat belt to strap the carrier in, it is MUCH easier to drop it into the base, which stays in your car at all times. If you can, buy more bases and keep one in each car. The stroller itself is easy to maneuver, even with one hand. And you can fold the stroller quickly, also with one hand.
Unfortunately, the stroller doesn't come with this. We bought it mostly because of the cup holders.
A baby monitor is nice to have. It gives you piece of mind to be able to glance at your baby. This one is a little expensive. There are options if you have a spare iPhone with apps that turn it into a streaming WiFi cam but having to open an app just to check on your baby is not as convenient as having a dedicated viewer.
Newborns love to be swaddled. The problem is that with the blankets most people use, they're made of cotton which is not very strechable and unless you're a master at swaddling, your baby can wiggle out of the blanket. The Ollie swaddle is great in helping keeping your babies arms tight against their bodies but the fabric is stretchable enough to let them wiggle.
Babies don't like loud noises. This can make it difficult to go out to noisy restaurants or keep baby sleeping on a plane. These things are awesome for blocking out noise. If you put them over your own ears, you can see for yourself how much noise they block out.
There are two types of diaper trash cans; ones where you use the manufacturer's own bags and ones where you can use any trashbag. I'm all for using your own trashbags. I hate companies that charge a high price to use their own proprietary bags. Go with this one. You can use your own trashbags and it prevents your baby's room from smelling like dirty diapers.
I'm all for things that help you, your wife, and your baby have as close to a normal life as you had before. For moms that breastfeed, these are awesome for having your baby feed while you are out in public. My wife says the plastic "V" at the top of the cover is key for helping keep a "tent" open for your baby to breathe and for mom to keep an eye on him/her.
Once your baby can sit up on their own, these are pretty cool. Most restaurant's high chairs are dirty and who knows how old. This thing hooks on to a table and you plop your baby in.
Pushing a stroller can get cumbersome, especially for short trips to the grocery store. If you want to carry your baby around, this is the best way to do it. It is capable of forward and rear facing your baby. Easily adjustable and easy to put on. Also available in different prints.
Once you are up for it, this thing is the best playard, sleeper for traveling. Once our baby outgrew his co-sleeper, we upgraded to this. The co-sleeper was a pain in the butt to assemble and disassemble. When I saw the video for how this worked, I was sold. Literally one button push to set up, one strap to fold and store. As an engineer, this gets my approval.
If you want to have total control of what your baby eats, you need to make your own baby food. To puree his food, we used this immersion blender. The advantage of an immersion blender over a standard blender is that you can take this to any pot and blend food in the pot. No need to have to pour contents into a blender. It's very time consuming and intensive but making your own baby's food is very satisfying.
Once you've made your own baby food, this is the best way to store it. Comes with trays that help keep them organized in your fridge or freezer.
For diapers and baby wipes, we signed up with The Honest Company. They pride themselves in using sustainable components and are free from chemicals, fragrances and allergens. They do a subscription service and my wife gets a kick out of picking the prints his diapers come in.
Having a newborn is very overwhelming but as cliche as it sounds, it's the best thing ever. I can't describe the feeling you get when your child smiles at you after you come home from work. Hopefully some of these items will help you with your child. If you have any questions, feel free to reach out.