Understanding the procedure of DOSH and what exactly makes it one of our melachas.
(Temporary Ohel) How to work with a covering when it is attached with hinges or any other attachment;
How to Work with Temperature Changes in Conjunction with Heating Systems, Air Conditioners, Thermostats, etc.
Preparations for the Week: Different Ways of Handling Dirty Dishes and Cutlery on Shabbos;