I would like to suggest to devs to add two equipment slots to Mounts, namely Stirrups and Saddlebags. When you visit Stable Master in-town, you can equip these items on your mount. Stirrup and Saddlebag items would be world drops, and come in normal, magic, and rare tiers. A few examples are shown below…
Stirrup Item Slot
Slot makes your mount move faster.
- Leather Stirrups (Normal)
- Adds +1 Spur Charge
- Adds +10% Mount Walk Speed
- Silkweave Stirrups (Magic)
- Adds +2 Spur Charges
- Adds +15% Mount Walk Speed
Saddlebag Item Slot
Slot gives your mount bag space and would be accessed via your character inventory UI.
- Small Saddlebag (Normal)
- Adds +11 Inventory Slots, 1 Row
- Thick Hide Saddlebag (Magic)
- Adds +22 Inventory Slots, 2 Rows
- Demonhide Saddlebag (Rare)
- Adds +33 Inventory Slots, 3 Rows
Lastly, devs could add a Tailor Vendor NPC that sells normal tier Saddlebags.