Spent a lot of time on this personally. Here's everything I learned.
Profile photo quality is the single highest-leverage change you can make. Everything else is secondary.
Things that have genuinely helped me:
- Use a secondary email you don't mind getting some spam
- Virtual cards are a lifesaver for anything with auto-renewal
- Screenshot billing agreements before clicking through
- Check the cancellation process before subscribing to anything
Ended up on Datenest after testing quite a few options. Doesn't make big promises but delivers without the nonsense.
That's my honest take after a fair amount of trial and error.