I'm a single no kids university student with 2 years left in a law degree and on the side I have a part time position in a reserve infantry battalion (which takes up far more than the advertised '1 night a week, 1 weekend a month and 2 weeks a year' but it's a great job so I'm not complaining

).
I generally try to train every day; AM or PM varies with my uni/work/motivation schedule. I'm a recent Crossfit devotee and try to make the 5am sessions twice a week and lunch time every other day.
I try and run when I miss a Crossfit session and when cash is tight I ride my bicycle pretty much everywhere.
On the weekends I'll either lay about feeling hungover and sorry for myself or go climbing.