Strategies to develop a sustainable workout routine include setting realistic and achievable goals tailored to individual lifestyles. Creating a consistent schedule helps establish a habit, making exercise a part of daily life. Combining different workout types, such as strength training and cardio, keeps routines engaging and balanced. Seeking social support, whether through workout buddies or online communities, can enhance motivation. Additionally, listening to the body and allowing for flexibility in the routine ensures longevity, preventing burnout or injury. It's crucial to focus on enjoyment and personal satisfaction for lasting adherence.