Just like your clothes,coordinate color,texture.
Get an overall theme going, boy racer, sleeper, pimp mobile, whatever you like.
Go 2 tone or multi tone, just remember Dark on top makes a car look top heavy.
Does all the trim match the grille ? All matte black or all chrome ?
Remove the badging. Toyota, Corolla, Dealers name, logos the fill and paint the holes if any.
Got Tint ?
No junky car wash accessories or stickers in the windows.