Wedding: Would you change anything?

Ok, ladies. As we begin to plan our wedding, I am getting helpful suggestions from women who have 'walked a mile in my shoes', so here's your chance.

Is there anything that you would change about your wedding? Things you wished you would've done, but didn't? Things you did and now regret it (i.e. playing the entire song so you had 5 minutes to stare lovingly into the eyes of your beloved)? Or, perhaps something you just wish you would've done differently?

Help me out here. I'm looking for helpful suggestions.