Jersey wreck reel...it's huge, it biodegrades (which is good for not damaging the ocean)...but I think a finger reel (much smaller, and with current technologies jsut as strong if not stronger) is a better option. Maybe if I go do some serious tech diving surve...but a dive right finger reel will hold a lift bag just as good as a jersey wreck reel.
There are times I wish I did use my snorkel...but its been rare....I can keep my head above water and swim without it...not as comfortable but good enough.
Other items of little value: None...all my stuff has been used, or will be used in an emergency (e.g. med kit, & knife).
One thing I bought that I use (by necessity) but don't like because it is uncomfortable - my booties. They are good on boats and smooth surfaces, but suck at a rock quarry