Increasing DC for Dispeling Spells

[Black Wolf]

Is there a way for a wizard to increase his chances for resisting dispels? Aside from the obvious - increase in Caster Level. I'm looking for a feat, item, archetype that just flat-out gives a bonus. Is there such a thing? I seem to recall that I saw it somewhere, but whether that was 3.5 or PF, I can't remember.

[The Elusive Jackalope]

There is Tenacious Transmutation in the APG, which is a +2 to the DC of dispell checks to dispell your transmutation spells.

Other than that, I can't think of anything off of the top of my head for PF.

As far as 3.5 goes, I believe both the Complete Arcana and Complete Mage had a handful of options for this sort of thing, but I believe they were likewise spell school specific.

[Banjax]

There's the Spell Focus feat which increases the DC of a specified school by 1 and can be taken multiple times but I don't know of anything that give you a flat out increase to everything.