I love tips lists–six tips, eight tips, 10 tips, whatever you’ve got–and I just came across Miss Thrifty’s post Six Thrifty Uses for a Lemon. I won’t copy all of her useful tips here (you should just go to her site and read them there!) but particularly wanted to call out this one, which I absolutely plan to use in my neverending battle with limescale:

3. Do what Frugal Grandma does: squish leftover lemon wedges against the bases of your bathroom taps and remove them after an hour or so. The citric acid dissolves limescale.