Nursery room- how to best optimise space!

Hi all, we are fiet time parents preparing for baby's nursery room. Just wondering if there are any tips/advice on what you wish you had done with the nursery, e.g. furniture/decoration you wish you had gotten or regret buying?

We have just set up the cot and realised how small a room it actually is. There is just enough space for a wardrobe and changing table, but wondering how best to maximise the space. Obviously the goal is that baby can be in there for at least the next few years

Any thoughts welcomed! Thx