Understanding the Concept of Having the Right ספרים in One's House;
Removing Dried Skin from a Sunburn, Eczema Around a Cut, Acne, etc., and Removing Glue from One's Arm;
understanding the two views with "דרך לכלוך" (coloring destructively). (Wiping one's hands on a towel from grape juice, blood, pomegranate, colored ices, etc.);