I guess I don't consider the learning and preparing to present part of my job. I do consider it part of my career though. My job is what pays the bills right now, my career is what allows me to continue paying the bills and hopefully retire some day. I definitely value down time, probably more than I should, but I don't think I'd be able to do my job without some.

I'd say I expect that 50 hours a week between job and career is probably an good average. If my job requires the full 50 then my career goals may take a back seat that week.

I typically don't turn on my PC on Sunday as that is a total down day when it comes to job & career.