Girls
Preachers
Broken knives
White-handled knives
White cats
Albatrosses, if you killed them
Fridays, if you leave port on one
Wednesdays, for reasons I can’t remember
Anyone who’s left-handed
Whistling
Talking about things like wind and weather out loud
Opening a chronometer
St. Elmo’s lights, if they’re moving down the masts (unless you’re a Chinese sailor, in which case the reverse is true)
Painting your hull certain colors
Anything suspicious not already known to be lucky
75 days to launch…