I used to theme myself - eg blue boiler suit, blue shoes, blue sobranie cocktail cigarette and blue curacao and lemonade.... never smoked the cigarettes just thought they looked cool (cringe)
Once bought the same shoes in magenta and bright green so I could wear one of each (only did it once though) and wore them with bright pink and green outfit.
Actually just off to change - scoop neck top and jeans far too boring for school run. There must be a dodgy taffeta frock knocking about in the back of the wardrobe.