Staves in general. Playing a spellcaster before they're available feels like absolute shit, so making little baby staves for 1st-level characters where none otherwise exist is good. I also don't make them necessarily staves, either. Sometimes you want to cast out of a cool grimoire or a mystic orb instead. Any sufficiently-magical one handed object is good enough for me.

I'm also way more lassez-faire about the economy. RAW gold-and-stuff-per-level is very stringent at maintaining a very straightforward difficulty curve and power progression, which does not mesh with the kind of campaign where players will drop everything to go buy a teahouse. Plus, the sheer bookkeeping of double-checking every random bandit and cultist they loot doesn't have too many valuables on them is a hassle I cannot fathom ever bothering with. They can have their three extra gold pieces here and there, I don't have the energy to give a shit.

Finally, uhhh spell traits I guess. You know there are like seven good arcane-and-cold spells in the entire system? Fuck it, if it's got an elemental trait and can be reasonably reflavoured, go for it. Paizo isn't going to print cool ice spells so I'll make them myself I guess. Fucking Paizo, those guys are assholes.