The difference between one letter or two letters; writing with a "SHINUI" (not the usual manner).
One letter on top of another letter.
What do we consider dancing, clapping during davening, and bottom line on clapping and dancing;
Playing Basketball or Soccer Outside and Rolling Items on a Covered Ground (e.g., on a Carpet, Mat, Board, etc.);
Practical applications with "מצוה" in S'char shabbos.