If you've got a new project to launch, consider delaying the kickoff at the beginning of the week. You will likely find yourself more than busy enough handling existing business as well as putting out a number of little fires. You're the go-to person on thursday and friday, and this keeps your schedule booked but is also immensely rewarding. Your specific expertise could even land you a leadership role now, or why not request one? If you can fit in downtime this weekend, by all means do it. You'll want to be charged up for some amazing energy early next week.