Words are inadequate

Oh! You will like this! You'll want a pillow, someplace comfy to lay down (I usually do this on my bed), and 1-2 tennis balls. Put the tennis ball on the floor about where your right shoulder blade will be, and lay down on top of it. Now, shift around until the tennis ball is pressing into your tender point or knot. My worst knot is sort of under the edge of my shoulder blade -- this works great for it. Lay there and endure. It will hurt at first, but the longer you lay there, the more deeply the ball will press into the knot and release the tension. When you feel like that spot is "done," you can shift around to put it under a different spot. This also works great on your neck. You can do two at one time, either to hit both sides of your body, or with one ball under your shoulder blade, and one under your neck. If the ball feels too hard, you can experiment with placing a pillow under it (works well for the neck), or a towel over it. Kinda like giving yourself a shiatsu massage!