I've just realised that I've missed the biggest business opportunity of my life. Donkeys years ago, I read Noughts and Crosses by Malorie Blackman, where she has a white character buying a plaster which is brown to match the skintone of the ruling classes in the book. I remember thinking, "Oh yeah, I never thought black people might want different plasters", but assumed that since she had raised the idea, they must already exists.
But apparently not. Years down the line, plasters for dark skin tones hit the market, and my chance to make a mint goes up in smoke.