Life is too short to remember a bunch of passwords. Reusing the same password for everything isn’t an option, either; only one site needs to be compromised to potentially expose the rest. With a password manager, you still need to remember one solid password, but the manager then supplies unique, practically unguessable passwords for each site. A leak in one website won’t threaten the others, and setting a new password takes a couple seconds and no new memorization.
Lastpass is one of many options in the space, both commercial and self-contained open-source software; personally, I don’t see major advantages of any over the others, compared to the benefits of using any manager instead of manual memorization. That said, I’ve used Lastpass for years and it’s been consistently convenient across multiple devices, inexpensive, and reliable. I also like its credential-sharing options, either for one-time emergency access or ongoing shared accounts.
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