When i need to clear my head, i go for a short walk. Up the stairs on the east wing where my office is, over through the lobby, down the stairs on the west wing (no, not that one), then past the cafeteria back to my office in HR. Sometimes, i stop for a small coffee at the Corner Perk. it's about 250 steps and 2 staircases, and the views out the back toward the rolling hills around Reading are spectacular. I do this 2-3 times a day. Helps me get my fitbit steps too . . . .