@snazzyq

If you are musically inclined: Harmonica and one of those racks so you can play it without your hands. Make sure you practice before baby is born! You will spending a lot of time holding baby for those first months and you will want something to do hand free. Harmonica was the best option I found. Just make sure it isn't too loud. From about 6 months to 3 years your best musical practice time will be while kid is in tub so whatever you play get one of those cheap instrument shaped objects for whatever you play so if needed you can destroy it while rescuing a drowning kid (I never had to do this, but it was always a possibility)

Those dockable car seats that go into any car or a stroller are nice for the first 6-9 months - then the baby is too heavy to carry in that thing and so you look for a car seat in each car. I'd still get one, but only get a dock for the one car you take most often - learn to buckle it without the dock for the other cars - or just get a 3 in one car seat that transforms from rear facing to front, to booster. You will have a 3 in 1 in every car with in a year anyway so start looking for sales.

We always brought every diaper out to the trash can. Maybe the diaper genie works, but we never had one and didn't want to risk the dirty diaper smell in the house.

Dumb: new clothing before 1 year old. The kid will go through so many different sizes and they will all get dirty stained so find the used market and go for cheap. Lets grandma buy new clothing if baby needs to look nice for something.