Almost forgot, needle nose pliers or vise grips and a knife, better yet a Leatherman. Basic tools and first aid kit are great. Also, to make your boat less likely to sink look at these: Sailing Gear: Clothing, Equipment, Hardware, Shoes, Line, Sailboat Parts | Annapolis Performance Sailing
I bought the bow shaped one but haven't installed it yet. There was some deal either at APS or West Marine where you can get it for $30 instead of $100 same product, different item number. I think it was at APS... Seems like not really enough, but I will probably buy a couple of the tube ones once I have finished redoing all the rigging under the deck.