It’s a lovely day in Mississauga. The sun is shining, the birds are singing, and you want to open your patio door to let in some fresh Canadian air. But when you slide open the screen door, reality hits. It has a tear in the middle from a runaway frisbee last summer. The frame is slightly bent, making it hard to move. On top of that, the handle has been missing for months, so you have to grab the frame just to open it.