Adding Cantrips to Known list

[TGMaxMaxer]

So, most of the options to add spells known only use your class list.

Are there any other options for getting cantrips from other lists? For a prepared caster?

Page and ring of spell knowledge explicitly state spontaneous only, spell storing would require someone to cast it for you for each use(and is rediculously expensive for cantrips).

There's a trait, Two World Magic that does it, are there any other ways?

Specifically, for a witch to get some of the ranged touch cantrips for something to do after they get thru the hex/cackle chain, or when fighting things that are mindless (like disrupt undead for undead) and such. Would like to get both acid splash and disrupt undead added to class list, and can't "research" other options for PFS.

[Roberta Yang]

Samsaran race, Mystic Past Life alternate racial trait. Though if it's PFS that's probably not available either.

[VRMH]

Why not simply buy wands?

[TGMaxMaxer]

PFS gold isn't really useful for wands at low levels, and at later levels the cantrips don't matter.

And, if it's not on your class list, you have do DC 20 UMD for wand everytime you want to use it, at the levels i'll be using a cantrip to contribute to damage, the best UMD you'll have is maybe 40% chance. (3rd level 3 ranks 3 class skill 2 cha) for a int based caster who also needs dex and con.

[RumpinRufus]

I think you'd be better off buying a few vials of acid and/or alchemist's fire. They'll do more damage than Acid Splash, and use the same ranged touch attack (but are even better because they still do splash damage on a miss).

Whatever investment you'd need to do to add two cantrips to your list would be a lot more than the few gp needed to buy alchemical weapons, and the alchemical weapons are more powerful.

[Zahir ibn Mahmoud ibn Jothan]

Pathfinder Savant?

[Bearded Ben]

A Cracked Orange Prism Ioun Stone would get you that, but it costs 1000 gp. See This Thread.