The patch which increased the maximum stack sizes of numerous items was wonderful. But looking at the developers section on the further increases to stack sizes plan has been grayed out as if completed. The following item types would benefit greatly as well from an increase to stack sizes I believe.

Dairy Products
Drinks
Egg Dishes
Grain Dishes
Meat Dishes
Mushroom Dishes
Seafood Dishes
Soup & Stews
Sweets
Vegetable Dishes

Cooking for me is one of the most space intensive crafts in the game and could really benefit from this increase to stack sizes. The aldgoat milk which I save up on my retainer takes more space then most other saved materials. An increase to most of these food stack sizes could help the general cooking craft in sales as well because buying food in bulk simply takes too much space to be practical as it is now.