Right now it's summer, so my grad students do most of the work. I just come in to hang with them maybe 2 hours a day. I had a grant proposal, about 2 weeks ago, that had me spending about 4 hours a day, 7 days a week, in the office. Now that is over, so I'm back to ~2hours a day, 5 days a week. I'm thinking about going on vacation for 2 weeks, then starting to create my syllabus and lesson plan. Now, October-December, and March-May, I spend about 30 hours a week on campus spread over 7 days, and about 30 hours a week at my home office.