Two more things to think about while working out at work.
1.) Don't forget to network with the others that may also be using the gym. If you are in a company facility, the person you are running next to may be a key partner down the road. I have strengthened several relationships just by a few minutes of chatting before, during or after a workout. If you are in a public gym, the person next to you could be a future, client, partner or vendor (or employer!). Remember the MT rules about networking.
2.) I run a lot with motivational music, but often I will catch up on an audio book or business oriented podcast. I feel like I have double-used the time when I do that because I can focus on the material without distraction while work on my health.