I've been using Koh for several years now as it makes cleaning the house easy. Last year the professional window cleaners told us that something was on the outside of the windows that they couldn't remove (sap from the trees next door?). This year we decided to clean the windows ourselves to save some money. We sprayed them with Koh and a couple of minutes later, the sticky stuff is gone with an easy wipe and our windows are now crystal clean.
I love the white glass (streakfree window cloths) and would like them to be available in a pack on their own.
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