I know I've said this before, but I highly recommend taking a course every semester. Many universities give their employees this option. Look into it!
I agree! My university lets me take courses at 10% tuition plus some of the fees. I took a course last Spring that I had always wanted to take and it was taught by the first friend I made here at New Uni (we met at the new faculty orientation). It was fun. This semester that just ended, my spouse and I took a language course together. We loved it.
If you take something you are interested in, it feels like FUN not work.