Hm, I´d say to prepare all of your clothes the night before. Set everything, including to the very last accesory that you want to wear, out. That way you´ll save time in the morning. Also, pick really simple basic makeup--the more natural it looks, the less time you have to spend putting it on. As far as hairstyles--I´d say go for a simple loose-hair with a hairbow style--you don´t have to spend time curling it or putting it up or pinning it back. Take a shower the night before, right before you go to bed. You won´t have to rush, that way.
If you do all that, and prepare the bag of food/goodies/the purse you want to take with you the afternoon before or before you go to bed.....it´ll basically just be a question of grabbing your clothes, putting them on, fixing your makeup grabbing the bags and leaving. Which can be accomplished in less than an hour.