1) Give us an in-game notepad of some sort. Just something to type a few short notes.
2) Let us save permanent flags/markers on maps with notes/titles.
3) Keep current <pos>/<flag> flags visible on maps after changing areas. If someone links me to a <pos> in East Shroud, and I click it to bring up the East Shroud map, then teleport to East Shroud without closing the map, that flag should still be visible when I'm finished zoning.
4) Give us a wish/watch list of items not tied to the market board. I'm not sure what to call it. What I want is to be able to right-click on someone's gear, or items they've linked, or any other item, and add it to some kind of list as a reminder that I want to look into it later. Ideally, a list of the last dozen or so item icons & tooltips I've selected, including glamour information when it's there.