Keeping a Valid Email: What If...

[Jinx]

What if my email has changed since I first subscribed, and then one day I need you to email me my password because, well, my gray matter has died and fallen out one ear only to be vacuumed up and/or captured by the electrostatic field across the TV screen?

But seriously, folks...what if? Am I screwed, too? Or, in my request to email me my password submit a new email address...but, that wouldn't be too kosher, would it? How do you know it's really me? Well, only I could do such a dumb thing, for starters!
- Jinx