How can I increase how many resources I carry?
The first storage upgrade comes from Surveyor Runip; he needs help with something. He’s found South East of the Dusken Keep standing in front of his straw hut. There’s a teleport location nearby (Surveyor’s Hut), and the road signs in that area will help point the way if you see any and read them.
Other storage upgrades will come from Warehouse structures discovered later in the game.