Sorry if I offended you !
I didn't mean to comment on your german spelling (I wouldn't dare to do that !!! ... or would I ?? <img src="/images/graemlins/grin.gif" alt="" /> ).
I was just trying to make sure it was not one of your many puns that I didn't understand...

As for home cleaning, I forgot to mention, that twice a year, when the wind is blowing good, I open doors on the west side and windows on the east side, creating a good draft ..... taking care (or at least moving ...) dust !
Ha ! I got you on that one !