Puzzles, playing with Dominoes, etc.
Preparations for a Weekday: Doing an Action That Is Not Being Done to Save Time on Motzi Shabbos;
How to Handle a Swarm of Insects That Are Bothering a Person, and Using Insecticide in a Room with Insects;
How to Get Rid of a Flea or Mosquito When It Is on One's Skin or Inside One's Clothing;