All solved by a password manager.
Password manager is good if it is planned to share all my passwords after my death with my family, for not gifting my funds to some random guys. In every other cases it sucks like Sasha Grey (from my lifestyle's point of view which involves heavy use of random devices most of them even does not support any passwd mngr).
It doesn't for basically everything I do, and I have a lot of systems, subscriptions, and profiles to worry about.
> random devices most of them even does not support any passwd mngr
In the simplest case, 2 things are needed to support a password manager: Network access, and copy-paste.
All of my mobile devices doesn't really support JS so I can not even input my HN's password to there without a PC.
Also I do not believe all of my e-mails which has some accounts with some values on it are still working. At least one time I had to re-register e-mail exactly as previous to withdraw some of my funds which were untouchable for few years :-) So the biggest part of problem is not on user's sides of wire and I have already tired to struggle to formulate such a simple thing using such a lot of sentences.