The best workout hands down

Scott Schwab:
This is a workout that you have to try. It does not matter if you have a set routine. Take one day and do this workout. You will be amazed at how it works your body and the cardio workout that comes with it. As you do weight training it is always beneficial for you to add in a faster pace or little to no breaks so you get your heart rate up.
Kettle ball toss
This exercise is very popular in the cross fit world and should be introduced to your regiment. The idea is to take a kettle ball or dumbbell and place it on the ground between your feet. Keep your legs shoulder width apart, bend down and grab the weight, and explode with the weight in hand and raise it above your head. For a complete workout you want to have an effective explosion into the air with the weight and slowly return to the ground. Do each arm 10 times and four reps. If you increase the speed, you will increase the difficulty, heart rate, and calories burned.
Shoulder press
Take a dumbbell and with both hands hold it behind your head and as elevated as possible. Slowly let the weight of the dumbbell drop your hands until the bottom of the dummbell is touching your middle to lower back depening upon your flexibility. You want the motion to be slow and methodical. This exercise is one of the best for shoulders, back, and especially triceps. Do the exercise 10 reps and 4 sets.
Curls
To improve the motion of the curl, change the way that your hand is positioned on the weight. If you take the dumbbell and hold it with your palms toward the ceiling, begin taking it upward. As you get to the top of the curl, twist the dumbbell either inward or outward, so your palms are now facing the wall in front of you. You do not want a weight that is so heavy that you are getting your legs and having to jolt the weight up. A nice fluid motion is best and in fact promote good posture by standing upright with your legs should width apart. Do 10 reps and 4 sets.
Push Ups
These push ups are different then normal push ups. The best way to do these is to get a ball or a surface that is over four inches. Position yourself where one hand is resting on the higher surface and do 10 reps. Switch hands and repeat. This may seem like you are not getting the full range of motion and you are right. However, doing push ups in this way keep the one arm constantly contracted so you are building good lean muscle. Just make sure you keep it even so your arm size is equal. If you can do this on a weighted ball, that is the best idea, where you have to steady the ball and your arm has to compensate. Include this at for the last exercise in the routine and I promise that you will be worked.
Exercise Ball sit ups
The beautiful part of doing sit ups on an exercise ball is the support it gives to your back. Additionally it will help you stabalize your core with, again, the constant movement of the ball. Finish with different sit ups and even add in weight when you are ready. It is great for the sacrum muscle that is positioned under the abs. This will help push your abdominal muscles out for viewing. Also it will strengthen the most vital part of your body; the core.

The reason for this workout, is that it can be done at home or at the gym. Improvise for the weight that you may not have with possible objects that can fill the void if you don't have dumbbells at home.