I'm at that point in the school year where I am reaching a burnout. My fire is dying and I'm always tired. Geek Colleague convinced me that I should take a "mental wellness" day and not go to work. He had to persuade and convince me that I should take a personal day to just de-stress myself. I'm a perfectionist and a control freak when it comes to teaching, so it's hard to let things go and just blow off one day.
But GC was right: a refreshed teacher is more effective and productive than a burnt out teacher who will be moody and snappy at students. So I will enjoy my unofficial three-day weekend.
God, I'm going to hate Monday.