I used to poke fun at "Captain Jack" (Jacques Costeau) for wearing a red beanie all the time. Then I found out, even if you have a wetsuit hood, when you pop out of the water and there's that icy winter breeze blowing, your soaking wet wool watch cap makes a HUGE difference.
Now I just pursue the Holy Grail of watch caps: One that fits my head without a lot of stretching, is windproof, and is knit from a good wool. Small caps that stretch too tight and get too breezy? Easy to find. Heavy synthetics? Easy to find. A really good, nice wool cap that isn't "One Size Fits None" ?
Not easy to find! I may yet have to learn to knit. And that scares the hell out of me.< G >