Remove footprints on carpet
These new dirt erasers are the hit for footprints and / or ancient spots in the carpet.
Moisten the eraser, press out and scrub the carpet with it. Eraser crumbles a bit, but can be vacuumed super, if the carpet is dry.
I even managed to get rid of an ancient stain. Although method is a bit uncomfortable and time consuming at larger footprints, but very cost-effective and the gym I can save me then synonymous.