I live in a rental that does not allow painting on the wall.
Unfortunately after moving a desk that hadn't moved for a few years, I found the wall was smudged a lot (all smudge is below waist level).
I have no idea what to do with it.
The way my living room is set up, there's no piece of furniture that could go there and hide the smudge now.
Maybe I should put some wallpaper on that side of wall to cover it?
But, unless the wallpaper can be easily peeled off later, I can't do that either.
Please help me to come up with some solutions for this problem.