Does anyone do this? I'm starting a new job in a few weeks and one of the perks is an on-site gym...would quite like to take advantage of this but because of DCs the only time I could feasibly go would be during my lunch break. Does anyone do this? How does it work (in other words is there a way to fit in a quick workout without getting so sweaty that you need to shower, re-apply makeup, do hair, etc. afterwards)?