We are taking my DD (who will be 3 at the time) to Disney for the 1st time in Nov '13. She is obsessed with Cinderella right now. Loves Sofia and Doc too. She talks about going to see "Cinderella and Cinderella's castle and Mickey Mouse Clubhouse and Minnie and Sofia and Donald..." every. single. day. Its going to be a long year! LOL I've been to WDW once in 2001 and also to DW once in 2003. Not only is my DD very excited, so am I! So my question(s)- what can I buy ahead of time that might save me some money in the park? I'm talking as far as fun stuff- autograph books, water bottles, pins/lanyards? Is it worth "pre-buying" these items? Also how does the pin trading work and when will the parks start decorating for Christmas? We are going 11/3/13 to 11/10/13. TIA!!