Understanding the procedure of DOSH and what exactly makes it one of our melachas.
is one allowed to wear glasses on Shabbos when the lenses change colors in the sun and indoors?
(Temporary Ohel) Making a temporary overhead shelter or roofing the opposite way;
מחמת חסרון כיס Machmas Chesron Kis: A Wallet or Card Holder Used for Muktza and Non-Muktza;