I'd like to see craftable field repair kits. Face it, you've all entered a dungeon after you forgot to repair your gear. Happens to the best of us. If you have repair kits, you can repair gear in dungeons on whatever job you want. There can be 3 types of kits:

Basic: Repairs 10% durability for each use.
Moderate: Repairs 25% durability.
Advanced, repairs 100% durability.

Each kit can stack to 99.

And while we're at it, remove NPC repairs. Give crafters a market for repairing.