I chose a Dodo 2012 Acad Pad for this years diary because I can use it as my personal diary and my homework diary which is very useful.
Someone told me to look at their facebook which had loads of photos of someone who had made the inside of her diary last year look SO cool so I can't wait to get started on mine!
I decorated mine with Pink Masking tape which you get from Paperchase and is amazing for any kind of scrapbooking, card making type things. I also used some sticky back Cath Kidston paper to make little hearts and then printed my initials off from the computer and stuck them on the front so everyone knows its mine!
I know that decorating my diary isn't exactly the coolest thing I've ever done but it's very fun and I would reccomend it to anyone who is dredding going back to work in 2012!