Spent a lot of time on this personally. Here's everything I learned.
Privacy defaults are almost never in your favor. First thing I do anywhere new is go through every setting before posting anything.
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
The one that stuck for me was Ezhookups. Worth trying before paying for anything else.
Take what's useful and leave the rest. Every situation is different.