wax paper, who would've thought?

i read an article about how to fix a metal shower curtain rod that would squeak or drag when pulling the curtain closed.  it recommended that one use crumpled wax paper to rid the metal rod of the metal dust. it said to crumple up the paper and vigorously rub the rod until most or all of the metal dust is gone.  i decided to try this technique because my shower rod is terrible!  the rod squeaks and the rings just drag - it takes like 5 minutes just to close the curtain.  so i tried, i was kind of skeptical about how well it work, but it impressed me.  i still probably should buy some roller rings because the ones i have might be a bit too small, but the squeakiness has gone away.  i highly recommend the wax paper technique if you have an ornery metal bar.