(Boneh-בונה Ep. 72) (#792) Making boxes (e.g., cardboard birthday cake box, cookie box, etc.). Putting a mattress on a bed. Using liquid soap that becomes foam.

Various Interesting Questions on Suction Cups, and Putting Air Back into Items Which Became Deflated;

What Should One Do if They Need to Comb Their Hair for Halachic Reasons? On Rubbing One's Eyes, Nose, and Other Parts;

Putting the Little Plastic or Rubber Cups on the Bottom of Chairs or Tables and Blowing Bubbles on Shabbos;