Thanks for the birthday wishes!
Very exciting birthday: teaching, meeting with students who are trying to decide whether or not to drop the class before the late-drop deadline on Friday, and typesetting the final exam. (The typesetting would actually be a lot easier if everyone had just given me their input handwritten, and then I could type it up the right way. Some of them emailed it to me already in TeX form, but it's really badly done, and I have to spend way more time going through it and rearranging parentheses and stuff than it would take to just do it myself.)