I got a retractable screen door for my bedroom door that goes to our back porch. Instead of a swinging screen door it just unhooks and rolls up to the side, and can be pulled back out.

It's great for getting a breeze on nice days, without letting mosquitos in. There was one on the front door when we bought the house, wish I hadn't waited so long as it was super easy to install. Will probably get one for the door to the garage as well this year.