Lift as much as you can while ur in college cuz afterwards it gets harder to make time for the gym (especially with non 9-5 jobs, relationships, random adulting, etc)
Garage gyms for the win.
Alledgedly China has corporate bonuses for people who meet exercise goals. Helps keep the mind sharp. (Not that I recommend moving to China for work, but they seem to be ahead of the curve on that)