1. Home time means home time
When you were at school, the moment the clock struck 3, you were no doubt out of that place like a Japanese bullet train. And while your job is likely a career rather than a place of temporary education, it ties you down by a contract and nothing else. So if you’re productive in the day and feel like you’ve done enough, then don’t feel obliged to stay any longer than your designated hours. After all, working late will more often that not achieve less productivity in the long run as you’ll be tired and thus more error-prone.