You should consider the SNCF Carte Avantage, which is only €49 at full price but goes on sale half off twice a year or so. It saves quite a bit of money on rail

You should consider the SNCF Carte Avantage, which is only €49 at full price but goes on sale half off twice a year or so. It saves quite a bit of money on rail tickets, and not just within France.