Here is a quick and effective workout that can performed in 30 minutes tops. All you need is a chin up bar and a couple of kettlebells.
Perform a KB clean & press followed by a chin up and see how many sets you can get in 15 minutes.
Rest for 3 minutes and then perform a 1 arm snatch with a descending ladder of 10 reps each arm followed by 8 reps, 6 reps, 4 reps, and finally 2 reps.
This will give you a great workout in minimal time, which is what most people lack. Enjoy!