A quick workout I performed in my hotel room this morning without any equipment, performed quickly with purpose.  Works all major and supporting muscle groups.

Warmup:

A few minutes of dynamic stretches, gentle lunges, squats and shadow boxing.

Workout:

50 Push-Ups

50 Air Squats

50 Sit-Ups

50 Lunges

50 Tricep Dips

50 Back extensions

300 Reps in total.