15 ways to use gorgeous ornamental grasses in your landscape-learn how here: http://www.bhg.com/gardening/flowers/perennials/ways-to-use-ornamental-grasses-in-your-landscape/?socsrc=bhgpin042512grassinlandscape
I really cannot get over Japanese Forest Grass (Hakonechloa macra 'Aureola', zones 5 to 9). My favorite is the variegated variety. I planted mine under a Japanese maple, and the contrast was genius and it has so much movement.
Woolly creeping thyme (Thymus pseudolanuginosus, USDA Hardiness Zones 5-9) | This garden's owner writes: "I love the way my woolly creeping thyme flows into my dry creek bed like water spilling over the rocks. The aqua color looks like it's foaming to me."