My wife and I were changing over our bedroom curtains earlier today and had to monkey with the hollow, seamless, two-piece stainless steel curtain rod. It suddenly occurred to me that with a bit of modification, e.g., removing the end pc. decorations, inserting a sleeve of some sort, and drilling & tapping it, one would have a very strong and light weight cleaning/wiping rod. Ours expands to fit a 72" window, so they're enough to work with. If you have such a thing that's not being used for its original purpose, you may want to consider it.