You forgot: pickpocket everyone and click on every single npc in the map because they might have useful info and/or a quest. Also, don't leave the area you're currently in until you've checked at least 3 times if you didn't miss anything.
Inquisition will be the death of me, I just know it.
That too. I get the feeling the game will go like this for me:
1. Gather party and explore area. Get all the loot, plants, shiny stuff.
2. Go back to base and go to the crafting area. Use all materials possible.
3. Go to war table to get mission. Swoon listening to Josephine and Leliana.
4. Go talk to all companions and advisers to try to make friends.
Repeat ad nauseam. And that's just for when I actually play instead of just messing around decorating Skyhold.