Entrance fees to three of my favorite Paris museums are being waived for six months (through June 30) to increase attendance:
Three others are offering (like the Louvre) free admission one night a week to anyone 18-25:
Musée d'Orsay (Thursdays)
Musée National d'Art Moderne (Centre Pompidou) (Wednesdays)
Musée du Quai Branly (Saturdays)
Go get cultured!