Here is a little video of me demonstrating how to use a magic eraser. These are widely available online, but I stock up when I see them in Poundland. This is what they look like from other suppliers:
The next time I remove the scuffs from a wall or a pair of shoes, I'll post another video.
So often when our possessions begin to look worn out or tired our reaction is to dispose of them and buy new. But think of the carbon footprint involved in that process, versus the comparatively small footprint involved in restoring what you already have. The financial saving and the subsequent personal satisfaction are the icing on the cake!