I do IM both on a corporate level and for myself. I wake up at 5:45 AM and start work at 7:30, 11:30 it's Subway time (I/we go to Subway everyday 5 days a week) 1 hour paid lunch. Back in the office for 12:30 or so and then finish at 3:30. Get home for 4 update some of my personal stuff mod some affiliate campaigns and stock trades till 6 PM.
Then I have the evening totally free I just totally switch off, I normally go and see friends or go to the gym or whatever.
But yeah, I find what I do extremely interesting plus the knowledge is almost priceless. Knowing the ins and outs of million pound PPC campaigns has more than just help me here and there.
Then bed 10/11.