Oh yes. So many. Where to begin? It's not too hard to get started with a password manager. I like 1Password personally, but any password manager is better than no password manager. A "password manager" is just a fancy spreadsheet protected by a master password. There is a bit of a learning curve but it's not hard:
1) Pick a great "master password" for 1Password. This is the last password you will ever need to memorize. A sentence is a good choice.
2) Whenever you create a new account, have 1Password generate a random password for you. It stores the password. Paste that random password into your web browser to login.
3) Once you get the hang of it, get rid of your old, carefully memorized passwords. Just have 1Password generate random ones instead. Start with your important accounts - gmail, bank accounts, brokerage, amazon, etc.
4) Add two factor authentication (sometimes called 2FA) to your accounts! This is another one that sounds hard but it's easy once you've done a few. That way, an attacker will need more than just your password to hack your account. 1Password can also store your second factor for each account. Again, start with your important accounts like gmail, amazon, etc. You'll sleep soundly and never look back.
I use LastPass and have a client that uses 1Password, so I have experience in both. I cannot say a ton about 1Password, and Adam does a great job above. I love LastPass. It's truly a game changer to use a password management system, no matter which you choose.
I've used 1Password for 5+ years, and am not familiar with any of the alternatives. It does a great job with password management, and secure account storage of all types. I've tried to set mine up as a one stop in case anything should happen to me for my family: noting the location of important documents (paper and virtual), account numbers, credit cards, bank accounts, IDs. 1Password is also great because you can have your personal "vault" of passwords, and a a shared vault with your partner or family members to keep everyone up to speed. It works well between my devices (iPad, MacBook, iPhone), and I like the web browser integration. My husband isn't fully on board with his windows laptop and iPhone, but admittedly he's not very tech savvy, so I don't know if the problem is the system or him.