Polishes, Teak oils, Wax. Ultra spare dock lines
, extra shore pwoer cord ( one already on the boat. I have them all aranged in different sized milk crates. Also have a dremel, an extra hose, and of all things a small electric power washer. Oour club requires similar dock boxes for all of them and they are on overhandgs at the head of our slips.
Some of my dockmates have targets drawn on them as they have hit them a few times. If you do that twice in our club you get awarded the skunk burgee which you must promenently display under the club bergee until someone else hots their dockbox or performs and extroadinary menuever when docking thier boat.
The power washer is great for getting the dirt out of the non skid, hitting the water line
scum but you must keep it away from the teak and the cannvas
Since our is out on the dock we have two drain holes in it so that should the water ever reach over the dock, it wont bust loose ( it has 4 times Sandy, Irene). It also makes it easy to clean and drain when washing it out.