The remarkable tablet allows me to go sit under a tree and design system diagrams or draw mindmaps. And then recover them for reference later. It's particularly helpful for work-thinking. For personal thoughts, having written/drawn them is often enough to cement them and I'll reference them months/years later as a novelty.

But the core of all this is that the sitting-under-a-tree-habit came after the device. Before, it was a bit of a romantic idea I'd tried with moleskines, but it didn't really scratch my itches.