"Oh she takes care of herself. She can wait if she wants. She's ahead of her time. Oh and she never gives out. And she never gives in. She just changes her mind..."
-- Billy Joel's "She's Always A Woman To me" 
1. Walk a little, live a little - If you are not very active now, your first step to getting fitter is to simply walk more. Walking is the most natural exercise of all. Brisk walking is great for stamina.
2. Running and jogging – An easy pace of running and jogging is fun, free and a quick way of getting fit. It is good for building up energy and endurance.
3. Swimming – Excellent for strength, stamina and agility especially if you use various stroke. Swimming is good if you are overweight or have any backache or stiffness, because the water supports your body.
4. Golf - A round of golf is a walk of four or five miles in the open air, often up and down hills and carrying your clubs or pulling your trolley can be good for leg strength and stamina.