Magic erasers. Works wonders, and they’re just a little sponge you soak in water, then wipe away grime with. The wife swears by them and even has the kids do their rooms with them from time to time.
Look for them in the cleaning section of your local grocery store.
Would be hard to do a whole wall though. Have used generic version too and they seemed ok as well (didn’t try side by side - but seemed the same to me).
I find repainting a lot less hassle than trying to clean. When you’ve cleaned one patch, it will reveal how grubby the rest of the wall is – you’ll never get it uniformly clean. It only takes half a day to paint a room, a lot less hassle than scrubbing!
However, near the back wall, there is a small gap between wall + cupboard, that I use to store posters etc. It’s just big enough to see the paint on the wall.:smack:
Maybe it might be easier just get a bit of wood cut to size and hide that hole? llol.