Yes, it's Sunday ... where most people are resting, I'm working. I'm posting here, Tweeting, posting on my Facebook page, or recording audio tracks for you.
M-F aren't work days for me. Every minute that I'm awake, I'm doing SOMETHING to get me closer to my goals. 99% need the rest because they're not totally immersed in the passion that is the "grind." If you're trying to get to that next level, first ... stop trying. Second, do more than you think is necessary. No Days Off.