When I am really tired, there are some things that my brain just can’t handle. Anything with math or creativity just drops away. I can do manual labor tasks such as putting away the laundry but I sure can’t do my taxes. I can ink a comic that is already drawn but I can’t think of a new one to draw. I especially can’t think of a new comic if I lay down on the couch to clear my head. Suddenly it’s the next day and I have to go to work again. :)