Plastic bags, for your feet and hands, make it much easier to get long wetsuits on. I only learnt about this last weekend, or is this old news?
I got myself one of these shades a few seasons ago and it's been a good investment, Great to keep off the summer sun or winter rain.
Its the limescale in the fresh water that damages the monofilm and stitching when it dries (obviously if you have quite acidic tap water this isnt a problem, here in the uk its quite alkaline), leave them wet with salt water and when you sell on 2 years later one rinse of fresh water makes them look like new.
You can never have enough duct tape.
Never leave the bigger sail at home!
Like previous replier said: camping chair for everyone.
Just in case you have to wait for the wind to pick up.
I have a fish tub in the back of the Vitara for my wetsuit, extension, harness, soggy towel etc. Great idea, keeps everything together and save rusting out the back of your car. But what about your sails? Roof or in the car? They seem to drip sea water for ages...
I don't think anyone's mentioned the big one, the one that sees people posting totally unnecessary "please help" threads on seabreeze every month or so, the one that makes people eyes roll...
...always tape up your mast joint with electrical tape when rigging up.