How to work with a small utensil when they are attached to the structure of the house.
This Melacha Applies to Sifting Wanted or Unwanted Particles. Does the Concept of מיד (Miyad/Immediate Use) Apply to This Melacha?;
Making a "ROSHIM" (mark) on paper, on a page in a sefer.
various different ways to work with the BOTTLE CAP attached to the ring on Shabbos;