How should one tie his shel yad on his hand if his finger(s) have something on them, such as a splint for a broken bone in the left middle finger?
I've heard a man shouldn't wear anything on his left arm (as a bracelet, watch, etc) while having tefillin tied on. If this is true, would it be completely wrong to wear a red string on the left arm ...
Do I need to remove my wedding-band, which I wear every day, to wash for Hamotze or morning Negel vasser? What about other rings?
When a lady goes to the Mikva she has to ensure that there is no Chatziza. Is a prosthetic arm or leg a Chatziza? Is there a difference if the prosthetic is permanent or removable? (source)