(Squeezing materials.) understanding the concept of wiping up spills with a towel or rag;
How to Work with Temperature Changes in Conjunction with Heating Systems, Air Conditioners, Thermostats, etc.
Understanding the Difference Between the Melacha of Kotzair-קוֹצֵר (Reaping) and Gozez-גּוֹזֵז (Shearing);