You're running late and only just notice that your blouse or shirt is wrinkled. What to do when there is no time to iron?

Hopefully you haven't showered yet, because then you can hang the shirt on a hanger on the shower rail, just far enough away from the water jet. Take a nice hot shower so that the steam smooths out the creases in the fabric. Just make sure the shirt doesn't get wet.
You can also use the steam method if you simply don't feel like ironing and want your shirt to be smooth.