Our front door has glass panels at the top and bottom with a letter box in the middle of the door. In the afternoon, the sun streams in which has bleached the radiator screen and more importantly, the hall carpet. We have thought about using venetian or roller blinds on the door but the problem is that they would both interrupt receipt of mail thorugh the letterbox. Thought about applying a film cover to the glass but it is textured and would show bubbles if the screen wasn't applied correctly. Any suggestions?