I employ a similar tactic, and I can't recall ever one single site that I use ch...

tim_iles on June 8, 2011 | parent | context | favorite | on: You have exactly three passwords, don't you?

I employ a similar tactic, and I can't recall ever one single site that I use changing its name. If it happened, I would then just change the password to reflect the name change, but it would be so infrequent that I'm not worried about it.