Part #2.
Understanding the concept of "שכר שבת בהבלעה" (shabbos earnings included with weekday earnings).
Pushing Out a Dented Water Bottle, Using Toys That Are Made to Deflate and Put Away, Putting Back a Nail in the Shoe, and...
Understanding the Concept of טירחא יתירה (Excessive Tircha, Major Exertion) on Shabbos;