Make sure someone has got a "wedding brolly." It doesn't have to be white, but it shouldn't be a massive promotional golf-sized umbrella you got at a conference. Keeping a bride dry isn't a one-person job. You'll need someone to hold your brolly while someone else is keeping your dress high above any puddles. Although it doesn't make for the most elegant of arrivals, consider popping your wedding shoes in a bag and switching at the venue so they don't get ruined in muddy puddles before you make your way down the aisle.