(Makeh B'patish-מכה בפטיש Ep. 20) (#898) Putting the Little Plastic or Rubber Cups on the Bottom of Chairs or Tables and Blowing Bubbles on Shabbos.

putting back a door that slipped off the track from a bookcase, wall unit, etc. putting back a knob that fell off a cabinet;

Leaning on an Animal. Bottom Line on Using a Hammock or Swing Attached to a Tree. Sitting on an Animal;

Part #2. Understanding the concept of "שכר שבת בהבלעה" (shabbos earnings included with weekday earnings).