6. If you can, start getting up at 5:00 in the morning. Get some productive hours banged out before you go to work. If you can't go to bed early, then compensate by taking mid-afternoon naps in a place where your co-workers won't find you (almost no one gets anything done during those hours anyway). Relatedly, it's worth a lot of money to kill your commute. If you can't afford to live near work, then consider a different city.
I like Intermittent Fasting of the Martin Berkhan flavor - you don't eat breakfast or lunch. You free up your lunch hour and you don't get sluggish in the afternoon (AND it's easier to lose weight, of course).