I've been thinking that it would be really handy if there were a feature that would allow note-taking. It'd be great when you're looking at the map and clicking on locations if you could jot down some notes for each spot. For example, I planted a couple of Wood saplings and couldn't tell you where they are anymore. Of course, I could just write notes on real paper, but maybe as a part of the Penpersonship skill, this could be possible. It would help me out at least.