I just hope the inventory sorting will be available in trading windows as well, such that the item grid order/arrangement will be the same in both the "standard" player inventory and in trading windows (request #3 in the OP). It's currently a HUGE pain to have inventory rearranged at random in the trade screen grids, even when selling from the separate item category tabs like "equipment," "ingredients," etc.

And this has been mentioned elsewhere, but after using a shovel, both your weapon and shield (if previously equipped) should be automatically re-equipped.

And oh yeah - thanks Larian!