Some more important concepts about "SHEMA YISCHOK" (one might come to squeeze out a garment).
How Do We Understand the Concept of פסיק רישא (Psik Reisha) as It Relates to the Melacha of Meraked?;
understanding the concept of גזרה שמא יתקע (a person might come to tighten it);
(Squeezing materials.) how does a handle help the SPONGE;