Your lymphatic system is like a sewage system in your body that works to get rid of all kinds of things that shouldn't be there. Taking care of your lymphatic system can boost your immune system and give you more energy. According to Iridology (the study of the Iris), people with blue and green eyes tend to need more work on their lymphatic system, but the information I share below can really help just about anybody.
Jumping or bouncing can stimulate lymphatic flow. Trampolines are wonderful for this, but even any kind of bouncing can help. When I'm standing in the kitchen waiting for the kettle to boil, I bounce. We bought a small indoor trampoline at a garage sale a few years ago, and keep it in the basement. According to NASA, 10 minutes on a rebounder/trampoline is equivalent to a 30 minute run.
Dry skin brushing is GREAT for the lymphatic system. You'll use small strokes or small circles towards the heart, on your dry skin, right before you bathe. Even 3-5 minutes a day is usually all you need. You can get a dry skin brush here. I keep my brush on a hook by the shower so that I see it and remember to use it.
Deep breathing is beneficial to the lymphatic system. In my online class Unlocking Natural Health, I teach a breathing exercise that is specifically for the lymphatic system. You can get more information on my class here.
Oregon grape is an herb that is known to support lymphatic flow.