Annoying chore: blinds cleaning. So that you don't need 1000 special tools, here is a household tip:
Cleaning blinds easily
Dough scraper with cloth
Simply use a dough scraper with a with a cloth wrapped around it for cleaning. Moisten with cleaning agent (e.g. methylated spirits) and clean the individual slats.
Read also: Detecting leaking windows and doors
Photo by Sabine, meinhaushalt.at