various examples of double knots and single knots at the end of a bag.
How to Handle Matzah Meal Which Has Pieces of Matzah (Larger Pieces) in It;
more examples of "מבטל כלי מהיכנו" (nullifying a vessel from its normal usage) that come up on Shabbos;
practical applications that apply to BONEH in conjunction with the structure of the house;