Another Moleskin book for 2013.
Infinite battery. No cloud sync issues, unless I forget to take it with me. You want a future-proof data format? Pen on paper beats plain text any day. I like Fantastical and OmniFocus as much as the next productivity dork, but stuff I need either starts or ends in one of these.
I will admit that the search algorithm can be a bit, shall we say, inefficient.