Just a quick tip on something I noticed at last week's wedding. It's something that happens at ever ceremony if left unchecked. At your rehearsal remind your wedding party to slow down their pace during the procession. Nerves will sometimes send people into hyper speed, especially kids.
A slow pace allows your guests (and your photographer) to take in those fancy clothes you are wearing. This will also ensure there are no mishaps with the runner. Those things are dangerous!! :)