Don't let the English take you by surprise. Get your ship's cannons ready for action.
Drink your daily wine ration - it'll make you forget all your troubles.
Diseases are rife on board your ship. Check your body for spots and lice.
Tie a barrel to your anchor cable so you can see where the anchor lies.
Buy Avoid Becoming the Spanish Armada by John Malam from Australia's Online Independent Bookstore, BooksDirect.