HANDICRAFTS missy: Not knitting . but ridges HOOKS Tutorial is in another language but translates roughly to an easy ribbed crochet scarf - crochet only in front loop to create ribs and crochet lengthwise.
add wood wallpaper to the kick plates of the stairs. Those rolls are expensive but you would only need one. Not practical with white treads though, it will be stuffed up from black shoe soles in no time.