Improved storage system

It would be super cool if storing items (whether thats mules, or the actual storage system ingame) was improved. Storing items is slow and annoying, and constantly making new mules / trying to keep them organized is tiring.

I understand that this would require a lot of effort, and likely marred by engine limitations. I just want anything to make storing things easier / less annoying. I don't know what method of storing would be easier to implement, so heres a few random ideas:

1. add an npc to store all scrolls (this would be my favorite)
2. allowing mule characters to enter the FM from maple island, or leave maple island at level 1
3. make characters start with more inventory slots
4. make the existing ingame storage much bigger/expand faster from NX
5. make trading more stackable things into a characters full inventory work.

I just want anything to make storing things easier. Gacha is pain with all the random scrolls. Thanks