Weddings are a special, magical event that brings two people together in harmony. But weddings are also expensive. The 2011 Real Weddings Survey found that the national average cost of a wedding was $26,984, based on a pool of 18,000 U.S. couples who got married in 2010. It can be difficult to plan your wedding on a budget, so here are some tips on how to save money and still have the wedding of your dreams. Be Flexible With Your Date Saturday nights are the most popular time to have a wedding, which means they are also the most expensive…