A while ago I realized exactly how dumb it was to have all the curtains closed, then because it was dark, turn on the lights. Particularly when a giant thermonuclear fusion reactor was just a few planets away, providing all the free lighting and heat you could want for around 12 hours a day! (not to mention saving electricity, carbon footprint, eco-friendly, money in my pocket...)
Unfortunately I live in suburbia, where you can't have all your curtains open all day long AND roam around in your undies.
So! I invented daylight curtains.
Cunningly crafted from an old futon cover I cut up and some lovely white wiiiide-wale courderoy I had too little to do anything with.

Which, as you can see, are a bit goofy and I miscalculated the spot where I was going to put the lime green and hot pink buttons to fasten each strap, but the safety pins will do until I can re-sew the buttonholes.

The other nice side effect is that I now have a lovely view of the trees across the parking lot
without having to also look at the neighbors or their cars. I am really
quite pleased.