The other day, in preparation for the long cold days of winter, I emptied the linen closets and washed all that was therein. Some of these things hadn't even been used since the last time I laundered them, and in fact, some of these things have been washed, more than used.
It's just a habit of mine, wanting to be confident things are clean; a trauma left over from the socialist paradises of the workers and peasants with free medical care for all, in which case clothes were more likely to rot from dirt before one could wash them.
Anyway.
Contour bed-sheets have always been a problem for me. My mother used to successfully fold them, and fold them flat and even and square, but not being observant when my mother was around, I didn't pay attention to how she did it.
When I fold them, they end up uneven and lumpy.
So I no longer fold them; I just bend them in half lengthwise, and then bend them in half again, and put them on clothes-hangers. It looks more tidy that way.
P.S. I suppose in some areas of the country, contour sheets are called "fitted sheets," in case one is confused by the terminology.