What is the easiest way to clean the grout lines in your home?

A grout line is the small gap or space between the tiles in a tiled surface such as a floor or wall. The grout is a material, typically made of cement or a similar mixture, that is used to fill these gaps and hold the tiles in place. It also helps to keep the surface sealed and protect it from water damage and mold. Grout lines are usually narrow and not always visible, but they can become discolored and dirty over time, and require cleaning to maintain the appearance of the tiled surface. The color of the grout is usually chosen to be similar to the color of the tile, which makes it less visible, but it can also be chosen to be a contrasting color.