In years gone by, when the fly population in the house got to be annoying, I would tuck a piece of old-fashioned fly paper near the kitchen window where it wasn't too obvious, and it worked. When it was ready to be thrown away, I could cheaply replace it. This year, though, we tossed our old heavy drapes and put light new shades in the dining room. The flies all wanted to hang out in the dining room window, and I could not place flypaper right where our eyes would be drawn while we ate. Gross. So I figured I would try this fly trap.