I use
some of these in combination with one of
these.
All my electrical goods (HiFi, TV, Cooker, Iron, etc) looked brand new and a good spray of Paul Gadds' 'Mr Sheen' kept them looking that way.
-john
PS: None of my electrical equipment actually works any more as I plugged then in when they were still wet and they all exploded. Still, they did all look brand new before the fire........................................