Have had great success with "Invisible Glass" cleaner and microfiber cloths at cleaning that haziness from inside windows. My problem is the small amounts of lint specs that show up in the bright sun and are as bad sometimes as looking through a hazed window. What towels have you had good results with?
And yes, mine are always washed and hung to dry. They are a few years old though.
And yes, mine are always washed and hung to dry. They are a few years old though.