Stuffing Up the Sink to Soak the Dishes. Wearing Rubber or Plastic Gloves. Pouring Hot Water onto Fats;
Many problems that arise in making egg salad, chopped liver, tuna fish, etc. (Besides the issue of LOSH).
Understanding the Difference Between Three Melachas: 1-ZOREH, 2-BORER, 3-MERAKED;