Take a 15-minute walk around your neighborhood or office building.
Do 10 minutes of stretching or yoga before bed.
Try a new workout video on YouTube, like HIIT or dance cardio.
Do 20 push-ups and 20 sit-ups before breakfast.
Take the stairs instead of the elevator for a few days.
Go for a bike ride in the park for 30 minutes.
Do a quick bodyweight circuit of squats, lunges, and plank holds.
Go for a swim at your local pool for some low-impact exercise.
Join a fitness class at your gym or community center for a fun and challenging workout.
Play a sport with friends like basketball, soccer, or tennis.