[LPT] In the grand scheme of things, one more hour after an eight-hour day at work is nothing. Use that extra hour to go to the gym.

Edit: It's clear that the majority of people that found there way to this post are not here for tips, they're here for infallible solutions and they will beat down anything that doesn't solve all their life problems. If this tip helps you, that's great. If not, that's fine and you can move on. Im sorry if this is impossible for you in your situation; however, the thought process below is something that I believe everyone can benefit from:

Think of it like this: An object in motion tends to stay in motion while an object at rest tends to stay at rest.

You're in motion all day at work, therefore it is easier to remain in motion by going to the gym. It's a lot harder to convince yourself to go if you head home and mentally clock out for the day.