Thanks. We tried the black paper accordion shades from Walmart and they were a bit too flimsy and wouldn't stay stuck on and didn't last. We're hoping to find something a bit more elegant than a towel, but that would definitely work! We also tried the reflectix stuff on the door glass but it's too much of a bother to take off when you do want light to get in.
I just phoned Just Blinds. The 1/2" micro-mini blinds would fit between the door screen and window - just. This blind needs min. 3/4" depth which is what the space is on our door I like the idea of being able to easily open and close something on the door. This is the first time I've seen any kind of functioning blind that will fit in the small 3/4" gap.
They recommended their 3/8" double row cellular blind for the windows (in black) as it would provide better darkening. This one requires a min. 1 1/2" depth. They thought the micro-mini blinds may not block enough light coming through the louvers but the cell type won't fit on the door.
In either one, they said to allow another 2" on the sides, top and bottom for overlap on an "outside" mounting installation.
Not outrageously expensive at $32 per each. Will have to let the boss of me see if she likes them. Seems like the older we get, the harder it is to get a good night's sleep so I'll gladly spend around $100 for better sleep. We also bought a black vent cover for the bedroom fan as that's been another source of annoying morning light.
True that blinds collect dust. You can't see it on the usual fabric ones but it's gotta be there. At least with metal ones it is easily wiped off. One thing we've found being in CGs is that dust cleaning throughout is regularly needed. There's a few too many people driving at faster speeds than they need to on the gravel roads and the thick clouds of dust spread everywhere.