Did you know that lamp shades might be cleanable?

I washed (gently) two pleated lampshades last week. They were in good condition with plastic linings, but very dirty. I used a stiff brush, but that wasn't enough. So I hosed them down carefully in the yard and let them dry in the sun.

Worked great!

I always start at the top and work down in a room. Ceiling fans first, floors last.