The 3-Inch Decorating Mistake Everyone Makes

A tailored curtain should just touch, or "kiss," the floor but never hover above it, says interior designer Lauren Liess (think of too-short curtains like the décor version of high-water pants). For a slightly more casual look, you may want to allow a two- to four-inch break of curtain fabric on the floor. And for a romantic look, allow the panels to go even longer so that they puddle on the floor.