I agree with your complaints, however my #1 by far is still the skill bars being limited to 10 slots on screen at a time. It ruins combat for me more than any of the major balance problems.
I kind of felt this way, then I discovered backpacks and pouches. For example, my ranger has two backpacks (one is E's, you can pick it up by holding down Alt and clicking on it when you find it). The one which isn't E's has any form of generic combat consumable, such as scrolls and food, while E's backpack has all the special arrows. Each backpack is bound to one icon, so with just three slots I can quickly pull up any of 20+ different items. It's three slots because, unfortunately, it doesn't let you use them directly from the backpack, so you need to drag the consumable to the empty third slot on the skillbar or overwrite the old one.
So organizing the items you can use is much more intuitive, and with 5 skillbars now I really don't feel like true skills are much of a problem.