(Squeezing materials.) two very important pointers to keep in mind when using pre-cut paper towels, napkins, rags, etc.
Understanding the Difference Between ממצא חפציך (Mimtzo Cheftzecha), דבר דבר (Dabair Davar), and הכנה (Hachana);
Tearing Apart a Six-Pack of Leben, Yogurt, Ices, etc.