I mentioned above that I bring a small tarp on kayak and canoe trips to sit under during those all day windy rain storms.
And I mentioned that is it a Eno hammock tarp, although I do not sleep in a hammock, I bought the tarp that was designed for hammocks. If anyone is curious what it looks like, this is a photo from my canoe trip in Oct in Northern Minnesota.
I pitch it low enough that it does not catch a lot of wind. Too low to stand under, but high enough for anything else.
It works very well for that purpose.
I also do not bring a chair on bike trips, but it is nice to have on canoe trips.