Agrees ago, I had written about how our toddler was making a booger wall near her head where she sleeps. Over time, the snot just dries up and gets solid and takes on the strength of concrete which makes it a pain in the arse to clean up.

The first time, my wife cleaned it up with lots of elbow grease and a liberal helping of Jif (a light abrasive)...

This time, it was my turn to tackle the wall (it had rebuilt itself pretty quickly). However, I did think it through a little bit... And thought that if I could rehydrate the snot... It would be just as easy to clean off as the day it was first applied to the wall!

So, I wet a cloth and just held it against the wall for a few minutes. Lo and behold... It was much much easier!

So, there is my random tip for parents. To clean up a booger wall... Rehydrate the boogers back to their original pristine stage. You'll find that they require the same slimy texture that allowed them to stick to the wall in the first place! Easy to wipe off...

... Never spend precious elbow grease if a touch of lateral thinking and time will substitute!