If someone, let's say, went to the beach (at night of course) and got sand in his hair and it stayed in his hair, the next morning would it be considered a Hasisa (obstacle) for Tefilin?
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 ...
How should one tie his shel yad on his hand if his middle finger is splinted?
What are the halachic issues involved in hair dyeing for women? Most importantly, does hair dye constitute a chatzitza for mikvah? Also: are there any communities that forbid hair dyeing altogether? ...
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?