What next?

I taught my last class of the semester yesterday. I give both my exams next Wednesday, and plan to be done with grading on Friday. In between now and then, I have a dentist appointment (rescheduled), a chiropractor appointment, two or three trips to the ob/gyn, a lunch date with friends, and various and sundry life stuff not worth mentioning. So the question is: how to spend my other pockets of time? I need to finalize syllabi, write two letters of rec, and--what else? I'm having trouble figuring out the next step, as far as my own writing goes. I don't want to start something big, only to have it interrupted with the grading and nonsense of the end of the semester. But I need to do something more than organize my desk and pay bills and take care of the life stuff. I'm just not sure what that is...