I've been doing abbreviated workouts lately- just to see how much benefit I can get doing 1 or 2 exercises on days when I am crunched for time.
1. Kettlebell Swings - 25 reps
2. Military Presses with Ultra Heavy Bands - 25 reps
A slightly condensed version. 22 treadmill, 1000m, and about 10 on the Versaclimber. Was in a rush, so kind of pushed things.
The good thing is I completed it during an extended 40+ hour fast that I'm still doing. My performance wasn't bad at all.