The difference between one letter or two letters; writing with a "SHINUI" (not the usual manner).
One letter on top of another letter.
A Small טירחא (Tircha, Minor Exertion) to Protect Items From Getting Ruined;
putting back a door that slipped off the track from a bookcase, wall unit, etc. putting back a knob that fell off a cabinet;
Addition to 1554: Hilchos Muktzah—Introduction to Part 3;