[dylanz]

That's us!

We started out doing exactly that... send an email with a human readable date to our service, and we'll send you that email back. We also support recurring reminders ([e-mail]), sending attachments directly to evernote ([e-mail]), dropbox, drive, and other things: http://help.followup.cc/knowledge_base/topics/cheat-sheet

We do a lot more now, but that's still our core functionality. We also have a widely adopted Chrome Extension that also makes this a point-and-click operation, but I personally go with the text based approach.