This is literally a QUICK tip. Spend less time at the gym!!! More and more research shows that fast, intense BURSTS of exercise are for more effective for increasing endurance, managing weight and increasing metabolism.

An hour at a moderate jog is, well, just an hour jog. Try EIGHT one-minute sprints (on the bike, on the treadmill, up a flight of stairs - it doesn't matter) followed by two-minutes of slow paced recovery. Push hard - it's just ONE minute.

You'll get a much better cardio workout in WAY less time