I schedule a "meeting" in my calendar in the middle of the day. Then I use that time to leave the office and exercise at the gym. This also tends to prevent so

I schedule a "meeting" in my calendar in the middle of the day. Then I use that time to leave the office and exercise at the gym. This also tends to prevent someone from inviting me to a meeting at that time. I find it really perks me up in the middle of the afternoon when I tend to drag. At the large company where I work it is not unusual to be elsewhere on site for a meeting. So, I have not asked for permission. However, I do know my boss does the same thing.