Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
When a Fly Is Between a Window and a Screen, Am I Allowed to Close the Window?;
covering a light switch with a magnet cover;
Understanding the Difference Between the Melacha of Kotzair-קוֹצֵר (Reaping) and Gozez-גּוֹזֵז (Shearing);