Freelance admin eats 4-6 hours a week. With 150€ setup and 2 hours of code I reclaimed 4.
Architecture
IMAP watcher → Claude classifier → structured extraction → Google Sheets → auto reminders.
Stack
Dedicated mailbox, hourly PHP cron, Claude Haiku, Google Sheets, Slack alerts.
Result
150€ setup, ~10€/month, 4 hours/week recovered. ROI in <2 months.