Two perspectives on dealing with the future, one more time management oriented, the other a little more creative.
Follow Up Then
Follow Up Then (thanks Marc) is a site that enables you to set time based reminder on email. It’s a clever idea and covers for times when you expect a response, but don’t get one, or simply want to send an email away for a while to deal with it later. The ingenuity of the system is that it all works from the address line of whatever email tool you use.
Future Me which is much an art project as a tool also has an accompanying book. Has been used by people to write over a million letters to their future selves, about exam results, break ups, job searches etc. In addition to writing to yourself in the future, you can also read what others have written, here are some of the better ones.