Fingerprints; invisible ink; writing on one skin; x-rays.
Inserting Stuffing into a Couch Pillow, Detaching Connected Toothpicks, and Putting Back an Unattached Chair Seat or Cushion;
מחמת חסרון כיס Machmas Chesron Kis: It All Depends on the דעת of the Owner. A Utensil Used to Cut Wood;
Mentioning an Action on Shabbos That Could Be Done the Right Way;