Having the inventory of the player stack items was a huge QoL addition but reduced other non back packs storage to LARPing, except for the Traveller's Sack which is just a direct upgrade to the main inventory. Suggesting:
1- Not allowing main inventory to stack items
But buff back packs, bindles and Traveller's Sack slightly to compensate (extra column maybe)
2- Add new "equipment containers"
Creel and Poacher's Pouch properly stack items now. Add to them:
Forage Container (hand baskets?) for herbs, mushrooms, leafs, insects, nuts, fruits etc..
Prospector Container for dirt and clay
3- Add more Backpack Extensions
Log pack extension that allows the main inventory to stack logs
Miner pack extension to allow the main inventory to stack ore and stones
Farmer pack extension to allow the main inventory to stack produce, seeds, string, cloth, silk..etc
Change Primitive Backpack Extension to give a row or a column of inventory
This will also incentivize using produce sacks and wheelbarrow more