You can’t expect to show up at formal events with wrinkled clothes. For travelers, it is not easy to carry a regular iron around. This Pocket USB Clothing Iron seems like a decent device for getting rid of wrinkles on your shirt or pants. It is powered by batteries or USB.
Use this to iron your pants, tie, shirt, or skirt on the go. The device has a heater on both the internal surfaces to get the job done. You will need 3 AA batteries if you don’t have access to a powered USB port.