Depends on how desparate you are to get leathered.
My mate recommends the dirt cheap supermarket booze in your hotel before hitting the bars and spending round £5 a pint. If you are taking your wench then cheap wine in a French supermarket looks the same as expensive wine (it all has that funny foreign writing on) so you could get a couple of bottles at 2 euros each and she wont know the difference until its too late to either notice or care. Meanwhile you can get plenty of Stella or 1664 for tuppence a gallon.
He also says that the road leading from the station to the one where the Melting Pot is on has an Aldi, just incase you have real drink issues.
Unfortunatly I did not see any of this because I was in art galleries and museums for 3 days.
Food was cheap enough, but he says eating is cheating.