If you don't use a password manager.. it's 2016 how do you do it with presumably hundreds of online accounts, don't tell me you've got the same password..
Syncs with Linux & Android. Lets me easily share passwords where needed. Has 2FA.
Literally renewed today. I did take a look at LessPass [sic] and a few others - I'd prefer an open-source and self hosted solution, but LastPass is cheap enough and convenient not to make it a priority.
That said, I do have a few sites which I use my own self generated password - makes logging in on, say, smart TVs a bit easier. I use the same "algorithm" for each - for example, for Twitter, TWpass321.
The other line of defence is a unique email address for each service. Using a catch-all email means I can be twit@example.com, bing@example.com, etc.
If one if those services are compromised, I know exactly who has leaked my details - and they can't use those credentials to log into another service.
On average the password is rich in upper case, lower case, symbols, etc. Sometimes though it lacks a number or has a character that is not allowed, and the adaptations to that are another part of the story.
I have thought of making a little JS app that runs on a web browser but haven't done it out of paranoia.
I will never touch anything like LastPass, Dashlane, etc., where you have no idea how secure anything is.