Why are my iPhone notes being emailed to me? I just realized that some of the notes in my iPhone (i.e. in the standard "Notes" app) are emailed to me soon after I write them.

There is no "to" address in the email so I can't tell what address they're being sent to (I use different email addresses for everything).

I may decide that this is a useful feature but to be honest I'm a little creeped out by it.  How does it know what email address to send it to?  I'm assuming it's the one associated with my Apple id but like I said I don't know.

How can I stop it (if I decide I want to), and what options are there for controlling this (and where are they?).  

I don't see any settings for this anywhere, in Settings or in the Notes app itself.
iOS uses mail to store notes similar to other office type software. 

You can disable that by going to settings and turning off notes for any mail account where you are being creeped out.