Email notification on certain date

Hello,

I need some help, mabye alot How do I go about getting an excel woorksheet 2007 to send me emails automaticlly. I have dates located in cells that an item will expire, for example, a drivers licence 10/26/2011.What I am trying to do is have an automatic e-Mail sent out to windows live mail "10 months ahead" and "1 year ahead" of the time something will expire.