I pinned THIS IDEA to my "Home Decor" board awhile back. I was (and still am) in the process of updating the Master Bedroom, and thought I might use this idea from Martha Stewart. The idea is to use a sheet to cover the box spring. Martha matched her box spring to her mattress, but I like a little more contrast/interest.
As it turned out, my new comforter/new mattress was not working out. The new box spring was taller than our previous one, and my comforter shorter than the one I had before. (Sorry...I didn't take a "before" picture.) You could clearly see the box springs. It bugged me for weeks.
I was so excited to find a queen sheet set for just $20 at TJMaxx. I just love the Damask pattern. I used the fitted sheet to cover the box springs. And...wah-lah...no need to make or purchase a dust ruffle! (I like dust ruffles...I just really didn't want to cover up the pretty wood of our bed. If I didn't have such pretty wood...using a dust ruffle would probably have been my 1st choice.)