This morning I was productive: dropped things off at Goodwill, did other errands, all the laundry, emptied the dishwasher, made lunch. Then I got home with the laundry and got halfway through putting it away (the stage when all the shirts are laid flat on the bed but nothing is folded/hung up yet) and apparently I was done. No energy, no motivation. I've been good all week, studied Mon-Wed to take the midterm in my more difficult class on Wednesday, took a quiz for the other class yesterday and have gotten lots of errands done. Apparently it all caught up with me. I think I'm going to take a nap.