While using treadmill at my home, I generally experiment a lot with mixing jogging, running and walking few laps (6-8) walking at different speeds (5KMPH - 7KMPH) and few laps(2-4) running at 10KMPH - 12 KMPH. As running same program every day looks very boring, I do everyday differently and feel different quotient of happiness.
However, I am not too sure what I am doing is correct or not. Can someone in this forum please suggest the right way / technique to do the same or at least endorse what I am doing is just fine.