Must Have List

Valerie
Dear mummies and mummies to be,
Would you be so kind as to advise on what is actually needed for the first 3 months after the baby arrives?
All the information around is overwhelming and we don't have much space living in an apartment in the city so I would like to err on the less is more, minimalist but practical method. 
So beyond a crib, car seat, onesies, diapers, what else is absolutely necessary and/or what did you buy and never used so I don't do the same 😀
Thank you!!