Well the remains of him do anyway! ;).
Seeing it's the day thats in it I thought it might interest a few of ye to know that the remains of Saint Valentine are in a church in Dublin, Whitefriar St. Church to be exact.
The remains were a gift from Pope Gregory XVI to an Irish Carmelite called John Spratt who had visited Rome and given some very well received preaching. He brought the remains, along with a vessel containing remnants of the saint's blood, back to Ireland where they are now on view at Whitefriar St. Church.
To read the full story click here: http://www.carmelites.ie/stvalentine.html