understanding Important Concepts in the Melacha of 'מכה בפטיש' (Final Action);
הכנה ליום אחר (Preparations for a Weekday): Washing Dishes on Shabbos for Sunday. Releasing a Halachic Vow (הַתָּרַת נְדָרִים);
wiping one's hands or mouth on a towel when they are dirty from colored foods or drinks (e.g., grape juice, pomegranates, colored ices, etc.);