After some time of going to the gym, I've started to skip the treadmill after the workout. I have better things to do, I thought. I'll just run to where I need to be. How wrong I was! After a workout, just hop on a treadmill for a sec. Usually, you'll see you have lots and lots of energy left. And then try this trick to stay longer: If treadmills in your gym show calories burned and time, try to keep walking / running till you reach closest round number. For example: If I'm at 90 calories, I'll stay till I reach 100. Then, let's say the time is 18:28, I'll keep going for two more minutes. Do this at least once.