Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
The Concept of Trapping a Slow-moving Creature (e.g., Turtle, Caterpillar);
open and closed metal cans, e.g. tuna fish cans, sardine cans, etc. Part 1;
Is one allowed to dress a child in their pajamas on Shabbos even though they are not going to sleep until after Shabbos;