(Koysher-קושר Ep. 17) (#648) How to work with regular plastic bags on Shabbos.
how to work with regular plastic bags on Shabbos;

how to work with regular plastic bags on Shabbos;
wrapping a string or rope with the ends tucked in;
opening up a double knot "במקום צער" (very annoying);
some important halachas of "garbage bags";
loose double knots;
is one allowed to open a double knot if it was made by mistake on Shabbos?
making "BOWS" and "slipknots" on Shabbos;
making a knot and doubling over the bow on top;
Understanding the type of knots that are allowed to be opened on Shabbos.
Various examples of "קשר של קימא" (knots tied with a permanence).
How long does a knot have to be tied to be considered a "קשר של קימא". (Knot of permanence).
introduction to "קשר של קימא" (the permanent knot).
various examples of double knots and single knots at the end of a bag.
making a double knot; making a knot at the end of a string, bag, etc.
introduction to "קשר אומן" (Craftsman's knot);
introduction to various types of knots;
understanding the difference between tying and sewing in halacha;
the use of a thermometer on Shabbos;
various interesting issues in reference to TZOVAYA;
cases where one is adding a color on top of the same color (E.g. black on black, blue on blue, red on red, etc.); coloring with clear colors;
a few more important points on applying items to the skin;
understanding the concept of "SHABBOS makeup";
understanding some of the problems which may arise when using makeup on Shabbos;
understanding the concept of coloring the human skin;
using precut paper towels, tissues, napkins to wipe one's hands or mouth from color.;
some important points to keep in mind in reference to TZOVAYA (coloring);
the bottom line on staining a cloth or a towel by wiping one's hands on it; wiping one's hands on the same color towel;
understanding the two views with "דרך לכלוך" (coloring destructively). (Wiping one's hands on a towel from grape juice, blood, pomegranate, colored ices, etc.);
wiping one's hands or mouth on a towel when they are dirty from colored foods or drinks (e.g., grape juice, pomegranates, colored ices, etc.);
coloring foods strictly for decorative purposes;