Save the date Ideas???

I was planning on making my own save the date cards. Does anyone know of any cute sayings that i can use on them?? My mind has gone blank..There is so much to think about!!!

I did a little poem on a postcard and put it in an envelope with a magnet.
It read
'It was written in the stars
That they were meant to be
So mark it on your calender
There's going to be a wedding'

Our names and the date
'details to follow'