The Nursery

Shelving to stack stuff easily away, you're going to be doing a lot of carrying, bending and suchlike so a decent amount of free space is good.

Clean clothing stash easily to hand - you're going to need a lot of it, so either in chests or in a cupboard.

Paint

Bright, light, plain colours. A mural can be fun, but make it bold not intricate. Nice warm carpeting or rug is handy.

... have a wonderful time, the most important thing is to enjoy your baby, they grow up only too quickly!!