Stretching gets your blood flow going, helps reduce muscle tension and stress, and keeps you flexible. Open the window after you wake up, breathe in the fresh air and stretch your arms, legs, and back.
Try to stretch several times a day, and focus on the body parts that need it the most. If you are working at a desk, those would be your neck, shoulders, and back. If you work a job that requires a lot of walking, stretch your legs, especially your calves and hamstring, and your lower back. You can find stretches for all body parts online, and it is a quick and easy way to treat your body to something good.