I just usually take the day off, Steve...oh wait, I shouldn't admit that to my boss. 🙂
Seriously, I typically try to work in a unique environment, like my back porch. In fact, I'm moving out there in a minute.
Amazingly, I actually find that Friday is often my MOST productive day of the week. I just feel a surge of energy and crank away, especially in the afternoon. Strange? Wondering if this happens with others...