(Boneh-בונה Ep. 81) (#801) Opening boxes with perforated openings, soda can boxes, salt and sugar containers.

(Squeezing materials.) the correct procedure in reference to wiping up spills on a counter, table or floor with a towel or rag;

what do we call "קיימא" (permanence) when dealing with stickers on clothing and other items;

Is There a Difference Between a Dirt Ground or a Hard Surface When It Comes to Playing with Balls, Marbles, etc.?;