I have always loved country curtains. Unbleached muslin trimmed with little fuzzy balls hanging on the fringe- that's perfect! I remember curtains like this in our farm cottage, when I was a child.
In the 1960s I found them again at Country Curtains shop in Connecticut, when came across a small black and white ad for Country Curtains in the back pages of the New Yorker magazine, and ordered some to grace the windows in our big old house in Westchester Counnty.
The ones in the dining room were made (by me) of unbleached muslin and ball fringe.It just feels comfy having them.