I bought this skirt: http://www.dressbarn.com/detai.....2612300/01 They didn't have an 8, and while I could zip a 6, I bought a 10 to get the extra length. Looked great in the store, but not so great when I wore it out. Without a belt, it moved up until the waistband was sitting close to my bra band. With a belt, it bunched up between my waist and my hips. Is there a trick to keeping a skirt like this in place, or have I just made another bad purchase?