I would like to see some widgets on my screen. They could be switched on and off in options and be repositionable. Positions would be saved when you logout.
- Clock
When in full screen mode I can't tell what time it is. A clock widget would be useful. Also handy for timing cooldowns and next mana potion fix. - Flags
Handy for showing status like 'Available for RG/BT/ASV/ARG', 'Selling Coal', 'Buying Ruby' - Stock Phrases
When you are in a dungeon there isn't time to type important things so have a Stock Phrases widget to 'speech bubble' text. - Extra Potion Bar
Four just isn't enough
I get round it by using the little 4 slot bag but it isn't perfect because you have to ctrl-click - Tool Bar
A widget for your fighting tools so you can quick change your crappy longbow to your kiting crossbow. Some mechanism for properly equipping a knife so that it doesn't swap one knife for another but equips your knife in the shield slot.
You would just click the tool to equip it not right-click and choose equip. A temporary workaround would be to have packs that you can resize to short and wide or tall and narrow. Or just sell packs that aren't square.