Happen to be in Paris and want to spend a couple days in Italy, Thello invites you aboard its night train to Venice.
Train leaves Paris (Gare de Lyon) at 7:34 PM and arrives in Venice (Santa Lucia) next morning at 9:34 AM.
Prices start at 100 Euros for a couchette in 6 passenger compartment is you were to leave on December 14, 2011.
Booking the same trip for January 14, 2012 today, couchettes in 4 passenger compartment are still available for 55 Euros.
Other destinations offered by Thelo from Paris include Milan and Verona with prices starting at 35 Euros (one way, subject to availability) with advance booking.
(* Thello website is in French only)