I'm at an evening wedding reception on the eve of my 40th birthday. I want to wear something at bit special to mark the occasion as actual birthday will be spent travelling back and early night probably! Any suggestions gratefully received. I'll have kids with me so nothing OTT but anxious not to look over-the-hill IYKWIM. I'm average all round - 5'4, size 10, pale skin, dark hair, blue eyes.