I think the best solution for busy people would be a treadmill desk. As a student, I used to study while briskly walking on a treadmill, which meant that I only had to sacrifice driving time.
Another way to save time while exercising is to go to school and get groceries on a bike. Deepening on the distance it might take 30 minutes instead of 25, but it's a net win because now you got 30 minutes of exercise.
Trips to the grocery store are pretty much the only reason I use my car, I bike everywhere else. I hate grocery shopping, and so I go as little as possible. Biking home with $100 of groceries is tricky.
That's a great idea. Did you have to stop because you're working in an office now? Being able to use a treadmill desk is actually one of the main reasons I want to spend more time working from home.
I don't have access to a gym or the need to study paper notes at this time, or the money or the space to buy a treadmill, but I intend to get a treadmill desk when I get a real job.
