ok so i told my dad im going to paris for the weekend for a mates birthday.

he said "if u do nothing else the whole weekend, remember the 3 french rules, 1) drinking outside is deerest, 2) sitting in a bar at a table is cheaper, 3) drinking at the bar is cheaper still"

is it true that the french openly have 3 different prices for drinks depending on where u plan on drinking it?

were getting the ferry early saturday morning and coming back late sunday.
can anyone reccomend good places to go in paris and the best place to stay and park.
were driving and planning on staying in a hotel rather than the car.
kind of going there blind so any suggestions would be great.

cheers guys!