How to use multiple SE accounts with the new login system easily?
14961
Please stop disrespecting my wishes by logging me in where I've explicitly logged out
15815
How do I connect two PS3 to the same PSN account
138657
Two accounts on same computer - how can I make a share folder for both?
20946
Use one password for administration and another for system login
102089
After adding a group, logout+login is not enough in 18.04?
142312
How to have separated but vinculated multiple Ubuntu One accounts?
125255
How to ensure that all new users have the same profile settings as the current user?
59870
How to use multiple Steam accounts without re-entering passwords?
115051
Make clear in the logon screen you can log in with your SE account
138663
How to setup login time limits (a.k.a. "parental controls") if you don't want to login with a Microsoft account?
78948
How do I remove an account from Google multi-login?
5404
How can I log into two different accounts on two different sites now (July 2015)?
125941
Prevent users from starting multiple accounts?
1598
What's the policy about having multiple user accounts?
34997
Multiple applications using same login database logging each other out
156982
How to restore/add previous user account
1263
How can one link / merge / combine / associate two accounts / users? (Anonymous / unregistered / cookie, or Google / Facebook / registered)