A long-ago decision to add a shower to the 1890 clawfoot tub generated a series of illuminating design decisions. I installed a rounded rectangle of hospital curtain track on the ceiling over the tub and paid for the first of five custom shower curtains*.
The least expensive, simplest to acquire, most durable, and easiest to maintain of those curtains is also the one least likely to impress a visitor. Changes in the solar exposure of the house necessitated a curtain that will hold no moisture after a shower. In a moment of expedience, I tried a thin waffle-textured plastic painter's drop cloth that cost just a few dollars. I folded the top edge, hammered hardware store brass grommets into place for a few dollars more, and trimmed the bottom edge along the convenient and accurate fold lines of the plastic.
I expected to replace the curtain by now but a recent discovery has extended its life indefinitely. Inserting a spray bottle mechanism into a pint jar of white vinegar allows me to refresh the inner surface of the curtain without having to remove and wash it. Once I figure out how to modify the visual, perhaps with agricultural polyester or a mylar survival blanket, the room should be back in prime condition -30-