Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
ממצוא חפציך (Mimtzo Cheftzecha): Understanding the Spirit of Shabbos;
Is One Allowed to Do a Quick Rinse if They Need the Space Where the Dishes Are Sitting?;
ממצוא חפציך (Mimtzo Cheftzecha): How to Deal With a מצוה (Mitzvah);