If your hotel room lacks an iron, the most effective and classic "hacker" method is to use the steam from the shower. Hang your wrinkled garment on a sturdy hanger in the bathroom (away from direct water spray), turn the shower to the hottest setting, and close the door. Let the room steam up for about 10–15 minutes; the moisture will relax the fibers and cause most creases to drop out. For smaller, stubborn areas like collars or cuffs, a hair straightener (flat iron) works remarkably well, though you must ensure it is clean and set to a low temperature to avoid scorching the fabric. Alternatively, you can use a hairdryer on a high heat setting, holding it a few inches away from the damp fabric while pulling the garment taut. If all else fails, many modern hotels have high-pressure "wrinkle release" sprays available at the front desk, or you can simply call housekeeping—many hotels keep irons and boards in a central storage area and only deliver them upon a guest's request.