WPIC & GWI Certified Voted by the Wedding Industry Experts as Best Wedding Planner in Milton, One Sweet Day is a small intimate boutique wedding planning and event coordination company with more than 15 years of events experience. We cater to Halton, Peel, Niagara and the surrounding Greater Toronto Areas. We pride ourselves on having an affordable customized package tailored to each bride, allowing us to take the stress out of planning; creating your special memories, your way, one sweet day at at time.