I try to do a lot of different types of exercise to become a well-rounded athlete and to really kick my body into versatile shape. An ideal week of training for me looks like this:
Monday: Weights (Lower body MAX) + 15-30 minutes interval sprints
Tuesday: Rest
Wednesday: Weights (Upper body MAX)
Thursday: 1.5-2 hours swimming (water suicides, resistance strokes, water sprints)
Friday: Weights (Total body dynamic/conditioning) and/or shadowboxing + heavybag work
Weekend: Rest and play
I really enjoy weightlifting and various anaerobic cardio exercises (especially sprinting and swimming), but I probably have the most fun with my martial arts workouts. I don't compete anymore but I still try to keep up with my practice at least once a week with shadowboxing rounds, conditioning, and heavybag workouts, which are the best. Killer workout for your heart, lungs, and muscles.
I also try to stay active on non-workout days and I'm a big fan of acrobatics tricking, parkour, and just going to the park and dicking around. Physical fitness is very important to me and I try to stay sharp and well-tuned.