(Tofer-תופר‎ Ep. 17) (#649) The use of staples on Shabbos.

Re-gathering Fruits Which Fell Out of a Basket or Box (Which Were Already Gathered Once Before) in a Small Area;

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

pull tab rings attached to orange juice containers, grapefruit juice containers, etc. (Making a nice usable opening on Shabbos.);