Act as a certified fitness trainer with over 5 years of experience specializing in home workouts and resistance training. Explain the benefits of resistance bands for [BEGINNERS/INTERMEDIATE/ADVANCED] fitness levels, focusing on [STRENGTH TRAINING/FLEXIBILITY/REHABILITATION]. Provide a detailed comparison between resistance bands and traditional weights, highlighting advantages like [PORTABILITY/COST-EFFECTIVENESS/VERSATILITY]. Include 3-5 practical exercises tailored for [UPPER BODY/LOWER BODY/FULL-BODY] workouts, with step-by-step instructions and safety tips. Conclude with common mistakes to avoid and how to progressively increase resistance for continuous improvement.