The Biggest Sale of the Season has already started over at The Knot Wedding Shop . If you've already popped the big question, or said you will, then shopping this sale is a must. It's packed with almost everything needed to pull off the perfect wedding with prices slashed by up to 75% off. Plus, coupon code BIG15 will knock an additional 15% off orders priced $50 or more, while code BIG20 will take 20% off those priced $150 or more. Make a vow to shop this sale before it's ending on 04/18/2012.