Retractable door screen
It's just coming on to nice warm weather here in Australia and the flies are pretty bad. We have an odd situation with our front door in that there's this wooden beam supporting part of the roof that comes across low. This makes it impossible to have a screen door that opens outward (the main door opens inward). My son suggested that we get some sort of retractable screen, but they are so $$.
Does anyone know of instructions for how to make your own? Perhaps something that retracts on a vertical roller on one side and when open, it seals tight on the other side with a magnet strip.