For a deep clean I use a curry brush (like this one: Four Paws Magic Coat Professional Series Grooming Brushes for Dogs & Cats l Trimmers, Nail Clippers, & Brushes Dog & Cat a.co/d/8j7CsHi) I had bought it for my cat, but discovered it works really well at pulling crap out from carpeting.
How the hell do I clean/vacuum carpeted stairs?
I know this is a cleaning request than a home improvement one, but I would appreciate some advice....