I was at the doctor today and he asked me what I do so I told him I'm a weddings editor. He then told me that the most important wedding detail is fun.
He said that the food and flowers are fine but if you don't have a great party people won't have fun and that's what people remember -- if they had fun at your wedding.
I completely agree.
And I'll take it one step further. You should have fun while planning your wedding. If you're not having fun then stop and take a break. And at your wedding enjoy yourselves. Let the little things go and enjoy every moment of what should be the happiest day of your life.