The time has arrived to swap close-fitting layers for a pretty spring blouse. From gentle ruffles to balloon sleeves and embroidery, this is the wardrobe switch-up that always puts a spring in our step. And the fashion maths adds up: one new blouse has the power to make every (insert maxi skirt, pair of chinos, jeans or wide-leg trousers here) that we own feel brand new. Â