I don't know if I'm suggesting this category in the right place, but if I am in the wrong place someone will let me know.

It's simple. Pick up the least amount of items that go into your inventory as possible.

Ex: 1 sword is one item. The sheikah slate is one item. The paraglider is one item. 1 helmet is one item. A blue rupee is 1 item. A bundle of 5 arrows is one item.