Re: The small things in life that really hannoy.

as has been mentioned, diluted bleach and leave it, will get rid of it all

i'#039#039ve found certain cups it builds up easily (i drink 10+ cups of tea a day, so wont take long for me) and others very slowly

bone china types is the slow build up and you never need bleach for them, cheap old scourer takes it off in seconds (i presume the surface isn'#039#039t .