What would you do to get your mind out of something your excited about?

i'm going on a vacation next weekend and i'm REALLY excited but when i think about it, it seems like it's going to take forever and i WANT to take my mind out of it but i can't. mostly because there is nothing to do and i can't think of ways to occupy myself but sitting in front of my computer or the t.v all day. what should i do?