For my side quests at any given time I am subscribed to one or the other of Claude $200 or Codex $200 or both. I was briefly on 200+500. Getting to be a real expensive hobby.
At my day job I spend about $1000/mo at API prices. So like 5-10% of my hobby usage.
Hobby setup is I have a single "personal assistant" session which spawns sessions for each project or major job on a project and messages with them. I talk to the personal assistant over Signal exclusively.
Work setup is just a wrapper around Claude Code.