I definitely have my own heuristics (g suite for everything possible, github for "technical" sites, facebook as a throwaway, etc), but I've found myself increasingly "getting it wrong." Not to mention this is worsened by the fact that some sites automatically create a new account for you if you log in with a non-existing account: this means you often end up creating a NEW account, further screwing yourself over.
Anyone have any good hacks to solve this? I've started resorting to storing a blank 1Password entry even for sites I SSO with, simply stating the SSO account and email I used.
Generate complex passwords in a password manager like 1password. Store usernames and passwords with the site to allow auto filling or search and copy/paste.
> 1Password will remember how you log in to each account so you can get where you're going with a single click
What if your twitter/fb/google account gets suspended for whatever reason? All of a sudden you can’t login to a plethora of sites.
Sign up via e-mail, save your password, and you're done.
Now you know exactly what you used to sign up with and you can stop giving data mining companies ways to track you.