Do you wear house slippers? We switch out of street shoes at the door for several reasons. It means less mopping. It got us in the habit of putting our shoes away right away; they are never abandoned somewhere, looking messy. And most importantly, it's comfy. As Maxwell says in the Apartment Therapy book, "Removing your shoes at the door is a good habit to get into. It underscores the separation between the outside world and the inside of your home, is easier on your floors and it keeps your apartment cleaner".
They come in black (unisex only), white, grey and red.