Build a base or lodge where you can store stuff. Leave the tools that you won't use while exploring (like the hoe and the cultivator) at the base to free up inventory space. Build a cart that you can fill with materials and move around. Build a ship that you can fill with materials and move around. Find Haldor, buy and equip a Megingjord belt to increase the weight you can carry. Carry a couple of cores with you so you can set up a portal where ever you are to move any non-ore non-smelted metals quickly to your base and store them.