On using bread as a napkin, to wipe your mouth from a given flavor. Also, how long to wait between milk (cheese) and meat — perhaps no time at all, as it turns out. Though some were known for waiting a full 24 hours, no less, from meat to dairy. Plus, salt from Sodom — a very fine salt — that gave rise to the practice of washing one’s hands after the given meal. At one point, it was a very widespread practice, though less so nowadays. Which leads into the discussion of washing one’s hands first thing in the morning. And other tidbits that seem to be about kashrut, but may really be about customs.