I was cleaning all my window's mirror and tv's yesterday and i ran out of glass cleaner. I decided to use the shower cleaner that i had, one of those where you just spray and leave it. Thought it wa better than using nothing.
From now on thats what i'm using it was brilliant. I usually get a slightly damp cloth to wipe over everything and then spray and then use paper towels to clean with the spray.
i also picked up one of those micro fibre cloths. The one where you can put you hand into it. They are great at picking up little bits of dust. It cost 4.99 from my local hardwere store. Great little invention.