Scratching One's Beard, Braiding a Wig (Sheitel), and Making Curls in a Wig (Sheitel);
Is One Allowed to Push a Carriage, Wheelchair, etc. on Dirt Ground Outdoors? Is One Allowed to Sit on a Chair on Dirt Ground...
דבר דבר (Dabair Davar): Making Calculations on Events Which Already Took Place Before Shabbos;