I distributed "run sheets" to the wedding party, who knew me well enough to indulge me. It included all deliveries, arrivals, phone numbers, and logistics (cars and parking). It was probably a little much, but useful nonetheless.
I was also able to sneak a little Bride's SM kit under my table at the reception. It included mints, safety pins, makeup, tape, a mini lint roller, a tide-to-go stick, bobby pins, super glue (you never know), a hankie, pens and a mini notebook, and other girlie things like blotting paper. I don't think I ever even used it. Just knowing this was tucked under my feet made me feel like I was ready for anything.
I would definitely recommend to all you bride-to-be SMs out there that you let go of as much control as possible on the big day. Ask other people to take care of it, and then trust them. Remind yourself not to worry. When you feel your eyes scanning the A/V setup during the speeches, STOP. This is an important day, and you deserve to enjoy each moment. I know you'd enjoy it by coordinating the bar setup and cueing speeches, but you have more important things to do. Like walk around in a cloud of bridal bliss with your new husband. So please, call in one of your SM friends to handle your day. You need to relax and be the Bride ('cause you can't call in an understudy today).