Jews on Cruise: Can One Sail on Shabbat?

Moving a Tzedaka Box on Shabbat

A gabbai, found on Shabbat morning that the tzedaka box was on the bima, where it would get in the way and/or get knocked off during laining. Is it permitted to move the tzedaka box in that situation?

Homeopathic Remedies on Shabbat

Is it permitted to ingest homeopathic remedies on Shabbat?

Of Umbrellas and Eruvs