CANCUN Diver swims ashore after 10 hours at sea

[tullibee]

I suspect Joe is thinking one of the dye markers would have been a good idea  (one-time use, fairly cheap)

and a good small strobe:


I've got one of these, luckily I haven't had to use it!  they've also got a bigger one with 3 AA and a long burn time, but it's quite a bit bigger (~10" or so).  this model can be stowed very easily.

my SMB has SOLAS tape, my magna-doodle has a mirror glued to the back, whistle & dive alert on BC, usually at least one flashlight in BC pocket, and often have a collapsable flask of water in pocket too.  I hope I never have to actually rely on any of it though!