I recently discovered a new concept for paying for drinks in Parisian bars- Drinkon.me.
They have a list of pretty nice bars and sell coupons with discounts with every new bar tried. They also organize aperos and barathons pretty regularly and have a great fidelity program that allows you to save even more!
So, yeah, just wanted to share my discovery....
Bonus: Drinkon.me uses mobile payment!