Essential Kit

With Christmas over and my mind turning more and more to trips outside the 
protection of the Cromarty Firth I have began looking at some more kit
that 
I should purchase. I already have flares, map case, compass, GPS, paddle 
leash.  After only an hour of paddling in a following 10 knot wind the
other 
day and spending that hour trying to go straight, I will definitely be 
purchasing a rudder for my skegless boat.
I also want to be able to get back into the boat myself so I have paddle 
float and pump on my list. First aid and repair kits come to mind and
maybe 
a spare split paddle. Are there any other items that I really should be 
carrying ? Tow line perhaps ?

-- 
Muzz
http://highlandmist.blogspot.com
http://www.geocities.com/tripdogmonkey