I just passed my comprehensive oral exam. I took a week off and have spent the better part of another week trying to build motivation to get back to work.
Now I have about a dozen things I could do for my project: delve into the observational or modeling literature, hunt down a tricky bug in my prototype model (several approaches!), derive the more general governing equations for my dissertation model, learn somebody else's code which I plan on basing my model on, restructure my prototype code (needed, but it'll take hours), and the list goes on.
I acknowledge that this is a broad and opinion-based question, but here goes:
What are some good ways to beat the post-orals slump?