I create a new email address for every new service I have, with a different password. I literally have 120 different emails that all funnel into the same email address via forwarding.
I tried to do that for a long time. It's nice until you forget exactly what your email is with say, Company X Industries when trying to reset your password. Was it CX@domain.xyz? CXI? CompanyXIndustries? That example is silly but this came up frequently for me. And was super awkward when giving out my email to a CS rep over the phone or "Can you confirm your email address for me?" Me: "something that ends with XP84.cc, I forgot."
Password managers have made this somewhat less painful, at least on the Web, as opposed to "Apps" which refuse to implement the API for using the password -- and username -- stored in your keychain.
