: Leslie and I recently met a paddler who has it figured out pretty well. She
: carried one of those camp shower bags, and used it to rinse her boat
: before loading it on the racks. Keeps her car from rusting, she said.
: Smart!

We usually use one of those to rinse the salt off our bodies. To heck with the kayaks!

Your point about car rust is well taken. There's nothing on our boats that the salt bothers, but it can do a number on a vehicle. Road salt rots it from the bottom and kayak salt rots it from the top.