Hello,
Meet Joe Wizard. Joe is a neutral wizard and cares nothing about the cosmic balance of good and evil. Joe just studies magic and believes that the world will bend to his will if he just applies himself.
Go Joe!
Joe uses lots of summon monster spells - These spells don't *really* summon anything to the material plane so they can't cause any lasting damage - and they have a wide variety of options useful to Joe in his role in a party.
Joe makes sure to track every time he summons an Angel to help his group out - and summons a Demon afterwords so that his alignment and morality don't shift suddenly without his control or consent.
Be like Joe - track your aligned actions so that you can cancel them out - otherwise some outside power will change your personality against your will!
/s
(seriously though - that's what these rules make magic feel like - especially when not using a character that is defined by alignment such as a cleric).
I can totally take Joe one on one.