Three account perks

Slayer Wisdom
Increases all Slayer XP you earn by 10%.

Wayfinder
Adds 8% to Obsidian material chances from non-boss combat monsters.

Field Porter
Gives eligible tradeable, noteable, non-equipment NPC drops a 50% chance to appear noted. Coins and Obsidian items are excluded.
Slayer Wisdom adds 10% Slayer XP. Wayfinder boosts material chances from non-boss monsters. Field Porter can note eligible tradeable, noteable non-equipment drops.
Equipment upgrades to consider
Obsidian Coin Magnet
NPC coin drops go directly to your inventory, or to the ground if your inventory is full.
Obsidian Bone Warden
Each eligible NPC bone drop has a 1-in-6 chance to go directly to your bank.
Obsidian Life Spark
A successful weapon hit has a 20% chance to restore 1 Hitpoint.
Use the combat style and required equipment for your assignment. Field Porter does not note equipment, coins or Obsidian items. Coin Magnet fits a ring; Bone Warden fits an amulet; Life Spark fits a weapon.
A useful swap
For faster kills, replace Field Porter with your matching Tempo perk. For task-completion materials, replace Wayfinder with Slayer Focus; that perk acts on completed tasks, not each kill.

Before you spend
Check perk compatibility, compare permanent upgrades and review Forge materials. Socketed effects require worn matching gear; they cannot bypass the one-Tempo or one-Focus rules.