Toilet cleaning under the edge with vinegar essence
Under the edge, toilets are known to be very difficult to clean.
I do this as follows:
Plug toilet paper pieces under the edge, so that always looks out a piece below (nice "tight to seal"). Then the herausschauenden pieces are soaked with vinegar essence, the paper sucks fully - let it act and then simply flush - clean!
Essigessenz smells quite strict, but is a great remedy for all stubborn dirt in the bathroom (even the chrome sink in the kitchen will be nice and shiny again!).