Not that I recommend anyone follow this routine, but for my martial arts training (for Kung Fu and Kickboxing) I do:-
Lunchtime:
a) Running 4 miles - twice a week for aerobic fitness
b) Kickboxing sparring - twice a week, one hour sessions, for anaerobic fitness
Evening:
Then I vary gym sessions three times a week, any of:
c) Weights - circuit of 12 machines on 75% of max for 2 sets, or 50% of max for 3 sets, or 100% max for isometrics
d) Abdominal machines - circuit of 4 machines for stomach muscles (same sets and settings as above)
e) Sit-up routine doing each abdominal muscle group (15 reps each)
f) Rowing/cycling - 15 minutes to warm up before weights.
And of course, my Kung Fu class (1.5 hours)
I ensure I have at least 1, preferably two days of rest (one weekend day and a week day).
I've been doing this regularly for 10 months now, and have gone from 15.5 stones with a small beer gut and no stamina, to 13 stones (my ideal weight apparently), no beer gut, and stamina enough to make my wife blush.
Actually, now that I write it all out - that's rather a lot, isn't it? I should calm down!