Yet another holiday task I set myself was to hunt down the treasures scattered around the continent.
Particularly for the latter group, I would recommend searching for the items that only spawn in one place rather than one that spawns in an area. The items aren't exactly large, so it's quite easy to miss them.
Luckily, it seems most people are focussed on farming on the Timeless Isle, so I haven't had too much competition.
I also recommend you take the time to look around while you're doing it. You might find some rather amusing sights on your way, like this poor dude...