IMO, the two biggest things that get overlooked, or not given enough attention, are chafe and
water leaks. The chafing
power of lines through a chock can be really impressive, and not something you can deal with easily once the storm is on you. Also, a surprising number of boats get sunk by the combination of no shore power/hatch
leaks water/bilge
pump runs
batteries down. More of a concern on older boats.