Remember the Milk

http://www.rememberthemilk.com/

When I have got this working properly - my fault rather than the site I suspect - this is going to revolutionise my wife's perception of my detail management! The concept of an online calendar is really simple but this has some nice touches like text alerts to your mobile - not currently available on Vodafone unfortunately - and the facility to send your account an email which it will update into calendar.
If you are someone who has a mind like a sieve then this could be a lifesaver. I have tried writing lists, synching my work calendar with my mobile but it's not working. If rememberthemilk can't help I am going to have to go for electric shock treatment.