So many times I've had conversations with bride after bride; saying they wish things could have been easier done. Don't make things harder than they have to be.
Make sure all of your bridesmaids/groomsmen are on the same page. Whether it's what dress to wear, what watch to buy, what hair style to have, make it something simple for your trusted team to acquire. If it's something that you decide to give free reign it might just be a good idea to make an executive decision and choose for them. After all, it is YOUR wedding.
If you're of the engaged brood that is planning a wedding in a different state make sure you have a trusted planner, friend, or family member that can help handle all of the miniature details of planning a wedding. Paying/scoping out your venue, being your correspondence for the cake, or whatever else it may be can all play a huge part in their help.
Don't let finances get in the way of your dreams as well. A lot of times your venues and vendor will work with you on payment plans to help ease the stress of acquiring your dream service business. Closed mouths don't get fed. The worst they can say is no, and you just make it work as best you can.