If you don't want to climb all the steps to Montmartre in Paris, you can also take the elevator to the 9th floor at the generator hostel at the Saint-Martin Canal. In the elevator is always a flyer with the dates when a DJ plays on the rooftop terrace.
Here you will definitely get to know other travelers and save yourself a taxi. Your bed is only two minutes away when you sleep in the hostel. But don't loose your room card, otherwise you'll have to spend the night on a beanbag. Everything is tippitoppi like in a hotel.
But... even if you stay somewhere else, you can sneak up!
What I learned at this hostel: If you want to blow dry your hair in the room before 12 noon, angry Brazilian women will throw pillows at you. Fortunately, I was not the enemy.