Write someone or yourself an e-mail that will be received 10 years from now

Web page "Message to 2028" offers a free service of sending an e-mail message that will reach the recipient on the 1st of January 2028, so almost 10 years from now.

To send such message one needs to enter the page:
http://message2028.com/
Fill in the text of a message (first field, from 60 to 6000 characters), put the recipient e-mail address (last text field), mark both check boxes, confirm that he/she is not a robot (recaptcha) and click "save message".

According to the promise of the creators such message will wait until the proper date safe in the database on their server. They offer also sending a message encrypted with a password. This is what this second text field does. You can put a password in there or leave it blank (no encryption). Encrypted message is not supposed to be known even for the creators of this page and will be received in encrypted form requiring a password to decipher.

The project is indeed interesting but a fundamental question arises: what should anybody sent such message for? What to write in it? New year's wishes? What kind of note to put in such time machine? Do you have any ideas? I'm curious of your creativity. Leave a comment. :)