How to shave in an unstable environment?
I thought I would PM the question, but I think others would also like to know. What techniques are used to shave with a straight when on a boat? I mean, I've read plenty of nautical stories (Patrick O'brian / hornblower / etc) and they have mentioned a calm day so they shave then. But there is always a little rocking and a rogue wave out there, or a wind gust that would heel the boat or something.
I guess this is directed at least to one of the regulars around here (starts with "Sl", rhymes with "stash"), but maybe there are other nautical types who have some pointers. Do you brace your feet differently? Gotta time your shave stroke with the rock of the boat?
"Of a thousand shavers, two do not shave so much alike as not to be distinguished." S. Johnson, 1777.