I only kept a list of all the orgs I've used, but after SESTA/FOSTA, it was a wash, since a lot of orgs disappeared.
I only rely on my memory, forums, text/email history.
All with accounts that I know the password to and it's a tough password.
The biggest weakness for me at the moment would be developing some memory problems.
It'll be interesting for my family if I ever develop dementia or Alzheimer's disease, but by then, I'll be ready to meet the maker.