Just don't worry about it and go through the password reset anytime you log in.

That doesn't make any sense. Password management isn't really that complicated:

Use a password manager, and reset your password if the service has been compromised.

What do you do when the PW manager is compromised?

Cry? Realistically speaking, this isn't going to happen without physical access to your computer or malware, though. So don't leave your computer unattended and don't download sketchy things.

Expecting people to simply memorize a unique, strong password for every single website that they use is unrealistic. Of course, no solution is perfect, but that doesn't mean we shouldn't improve the current situation of people reusing passwords with maybe slight modifications per website.

Password reset is easy and free. Why go to the trouble of a password manager, especially for dumb stuff like grocery coupon cards?