Monster Item Gathering On/Off
To be able to turn off the ability to get trash items from monsters. Like wolf fangs from wolves. I would definitely love to have this and turn it off when I kill stuff and don't want the bag full.. However, items like Mhachi Farthings and Midan Gears should also count as monster items so players would have to toggle it to get those items. Doesn't seem so bad..

Preview Dye Window!
I want this super bad... I've wanted it super long. The ability to preview a color on a piece of gear you don't have. Example.. you're looking at a piece on the marketboard and you want to know what it would look like as a certain color before buying. You go to the "Preview Dye" option to see it. Almost like "Try On" but "Dye"