to clog a small crack in a pipe. Turning off gas range. Putting on, taking off smoke detector. Unscrewing the bulb that's off;
This Melacha Applies to Items Which Grew from the Ground. Even Blowing with One's Mouth Is Part of the Melacha;
מחמת חסרון כיס Machmas Chesron Kis: The Status of a Notebook;