Bought My First Car

Finally after lot of deliberation and help from fellow members, have bought Skoda Slavia Sportline 1.5 DSG. Could you guys please suggest me some must have accessories? I didn’t take any accessories from the showroom as I felt it was not worth the price they were giving for basic accessories. And please suggest how to maintain black colour , do I have to go for PPF or Ceramic/Graphene coating will work? Vehicle is in Bangalore.