I always recommend for people to use a password manager of some sort. I have used Lastpass for years, but recently switched to Bitwarden https://bitwarden.com/ Bitwarden just seems to work well. Most people can use it for free and be fine. If you want to subscribe it is only 10 dollars a year. It is open source and everyone feels it is secure. I highly recommend it. If you want even more secure you can use https://www.qwertycards.com/ Big advantage to this is that there are only 2 copies and they are hard copies. Meaning there will be no site online that can get your information.