Please be sure to update your email address in your profile if it changes. I have so many people email me because they can not reset their password and this is always due to the email address being incorrect in their profile. I can manually reset it but it can sometimes take several days for me to get around to these requests, and it's so much easier and faster (mostly for you) if you just be sure to keep your email addy up to date. You'll be able to get your password reset instantly if you forget it!
If you are worried about receiving unwanted emails and wish to not receive any, all you need to do is disable the option for emails until your user control panel. You can even disable the option to receive admin emails, if you wish.
Just please keep those emails up to date so you can get your password if you ever forget it