Unfortunately, there is a catch that no one likes to talk about. Even better, your browser will fill in passwords automatically for you. You can create the hardest passwords around and not have to remember any of them. That's why it's such a relief your Web browser stores passwords for you. With regular data breaches of millions of usernames and passwords happening at major companies like Target and Michaels, it's a very real worry.
On top of that, you really need to have a unique password for every account and Web site in case a hacker gets hold of one of them. If you create one that's safe, you'll never remember it. If you create one that's simple, it isn't safe. Passwords are a royal pain in our digital lives.