PSA: The Polypore Staff has a "Universal & Runeless" Spell (Polypore Strike), which is kinda nice for Scavenging 4 Component Farming.

What does Universal & Runeless Mean?

Well... It's pretty self explanatory, but in case it's not... Runeless means that it doesn't consume nor needs runes in order to be cast, and "universal" means you can use it on every single SpellBook in game (Normal, Ancient or Lunar) so you don't have to Spellbook Swap.

How can this be useful then? Ah, very easy, go to the Lumbrigde Catacombs, Equip this Staff and Perk it with Caroming 4 + Undead Slayer and Scavenging 4 + X.

Equip a full set of Superior Seasinger Armour (for the port resource crates drop) and slay away! You may even get some Last Wills too while you're searching for your Rare Components in Advance of Necromancy.

I'm not sure why this isn't more popular, and all guides i've seen about Scavenging 4 fail to mention this fact... I mean, you may even rush some slayer points too, if you're on lunar spellbook just use NPC contact (bring some runes for the spell), do 9 Tasks for Jaqueline, the 10th for the Raptor (preferably undead cluster task), and keep at it!

Obviously this is just a primer, but if you really sit down and think about it, you'll realize there's some untapped potential here to knock down 4-5 Activities at once.

Cheers!