Progressive Muscle Relaxation (PMR) goes well with MT, especially if you're one of those people who has a hard time sitting still to relax. It's very simple - starting at your head or at your feet, you inhale/tense/hold....exhale/release muscles in each area of your body, systematically working one area at a time. Doing three repetitions in each area before going to the next works best, especially when you're learning how. The first time is a warm up, the second gets stronger tension and by the third repetition you can really let go and fully relax that area.
An effective method to help you relax and release tension at the end of the day. PMR literally teaches the muscles how to release and relax completely. It can surprising to notice just how much tension you're holding without being aware of it. Word to the wise - don't hammer on your muscles and risk cramping - just tense firmly and let go fully.
PMR instructions (handout) from our fav, Dr. Wehrenberg , 17 minute narrated practice below.