One alternative to common drywall patching compound is paintable caulk. If, for some reason, you find your drywall cracks repeatedly (around the edge of a windowpane, for example), apply a paintable caulk that is also water washable directly into the crack with your finger. Before it sets (usually within 30 minutes), wipe down with a clean damp cloth, again to smooth and to allow the existing texture to bleed through.