Cleaning tile grout when you can't crawl around the floor, or are mildly arthritic is a pain, literally. So when you live alone, clean dirty grout in patches, as a simple maintenance task, not an overwhelming chore.When you're over 80 and need to clean grout on a bathroom floor, you need to do it on your feet, upright, and in sections. The expandable handle of this light; but heavy duty, grout brush screws into the brush head in seconds. Spray a section of the bathroom floor, say four square feeSee full review