I am really good at spelling.
I never spell anything wrong because I have a condition called synesthesia which means I see all letters from a to z and numbers from 0 to 9 as colours (spelt color in the US)
Each letter of the alphabet and number has it's corresponding colour which never changes - I've had it all my life and every time I see a word or a series of numbers it appears to me as multicoloured - quite pleasurable really. It serves no purpose other than that but it just means I have an advantage when spelling things - because the colours just look "right". Hard to explain I know but there you have it.