It is tempting to do nothing. I love the look of them bare and we live far back from the road, with no one to see in, so it isn't a privacy issue. But at night bare windows are so stark. So black.
I don't like curtains much. They can be pretty, but are always dusty (in my house at least) and we are a family of allergics who don't need dusty. Most are too fussy for my taste. When we bought the house there were draperies, with heavy rods and liners over the windows. I think they were custom made and probably expensive. They were shiny and polyester and had a very strange, to my mind, wide blue band across the bottom. I thought they were hideous.
So I've been pondering. I like shades, but I'm tired of mini blinds. The wooden blinds are nice, but dust catchers too. Really, my favorite window coverings are bamboo shades. Go figure. I love the way they filter the light, especially on a hot, sunny day.
Now, I just need to decide if I need to go get a couple more to go over the sliding doors. I don't think so. Less is more.