I often find that the most frustrating problems can have the simplest solutions. Take sticky label gunk, for example.
It is such a trivial thing, but who else here hates it when you peel a label off of a jar (or worse, off of a book!) and it leaves behind that awful, sticky residue?
It looks bad, feels bad, and eventually turns that nasty shade of gray from who-knows-what being stuck to it.