I have the mini blinds and valance combo...and yet Miss Julie will get on the top level of her cat tree and stretch up to the valance and on at least three occasions has pulled them down. I have to have the blinds pulled all the way during the day or she gets between the window and the blinds and goes spazzy...she may be lovely but the girl is not always graceful.

When I first got her she was sitting on my bed...and all of a sudden she sprinted and tried to make a flying leap about half way up my curtains and hang on....Kitties...Gotta love em!