Inventions ideas I have that nobody would use, but are highly convenient.

Inspired by the Opti-Grab after I watched The Jerk.
  1. 1.
    Ear-plug wigs
    "Invisible" ear-plugs hidden by fake ear hair.
  2. 2.
    Pencil finger warmers
    Pencil grips for the outdoorsman, carpenter, old lady with arthritis trying to do her crossword puzzle and so on.
  3. 3.
    Books designed like note pads
    I don't know.