Yesterday we went over to Home Depot to pick up a screen door for my apartment. It is a very irregular door opening with no way to actually install a permanent screen, so I just wanted one that was easy to put in and take out. I ended up getting a replacement patio screen since it had the most actual 'screen' to it and could be adjusted to a height closely approximating my door.
I did want to get a breeze, but mainly I wanted somewhere for my little guy to sit so that he could look outside. Needless to say, he likes it.
(And yes, I do have a Miller High Life welcome mat by the door.)