Duane,
I added a standard dock box to my center cockpit cutter and I use it to store lots of things.
Its best for extra jerry cans and also gasoline. These items cannot be stowed below deck and the sun will slowly break down the plastic. Also emergency
lines and a snorkel and fins are kept there in case I have to go overboard quickly in tropical waters.
The box keeps the deck in neat condition and you can reach anything you want to stow in it immediately at hand.