Rain on your wedding day is supposed to be a sign of good luck – or so our Celtic ancestors would say, anyway! The idea behind this old superstition is that a knot is almost impossible to untie when wet. So if it’s raining when you ”tie the knot”, it’s a sign that your marriage will be just as steadfast. Pretty cool, huh? In our experience, this ancient saying certainly makes brides and grooms feel a whole lot better about downpours on their big day. But no matter how lucky the rain may be, we know that no one wants to end up soaked on their wedding day. And that’s…