Our kitchen has black units, light cream work surface and clinically white big floor tiles that show every crumb or speck of dirt. I don't really like any of it but can't justify replacing everything..
If we were to change the floor, what would work? Warmer grey tiles? Wooden floor? I'd love the latter but I expect it wouldn't go well with the black units.
We've lived here for so long now I can't picture anything different..