Toilet
No need to explain why and how this area of your home needs extra attention. Parry explains that, in addition to the obvious ways your toilet gets filthy, it can get limescale buildup (just like your showerhead).
‘Dark marks at the bottom of the toilet bowl are usually due to limescale trapping dirt particles—and, if a toilet isn’t used regularly or if you’ve been away for a while, you’ll see that these dark marks become more pronounced over time,’ he says.
‘Usually, if you use a specialized toilet product every few days, this will be more than sufficient to keep on top of any problems.’ He recommends applying the product, letting it sit for half an hour (or overnight if the problem is worse), and then using a toilet brush to break up the limescale.