Just looked at that Peroxide link Beavis - technically I have to say that the ahem cleaning products that my company manufactures has more than just basic cleaners like that one -they spend millions in research etc etc etc!
Personally I like the old Victorian solutions which do use these basic materials - like washing soda (Sodium Hydroxde?), Hydrogen Peroxide, Baking soda (Sodium Bicarbonate), Linseed oil for sealing and cleaning tiles for example - all those old cheap products work so really there's no need for fancy purple coloured products in whizzy squirty bottles with people shouting at you from the telly!
But I will try my car cleaners on the door trim first!