To develop a sustainable workout routine, begin by identifying realistic goals and preferences for physical activity. Incorporate a mix of strength, cardio, and flexibility exercises to achieve overall fitness. Consistency is key; aim for a schedule that can accommodate daily commitments without overwhelming you. Additionally, utilize motivational techniques such as tracking progress, varying workouts to maintain interest, and setting challenges. Listening to your body and allowing for rest days is crucial for recovery and long-term adherence. Creating a social aspect by exercising with friends can further enhance sustainability.