By GEOFF CAPLAN First and foremost, don't make the mistake of planning your own wedding. It's fun to have friends and family assist you in organizing a wedding. You want to share this unforgettable experience with your loved ones and include them in the entire process. Checklists can be found in magazines, innumerable books have been published, television shows abound, and you may have already planned activities. You may believe that you can pull this off and save much money