Going to be in Paris for a day in a few weeks - done the tourist sights. Any suggestions of cheapish things to do?
Buy a couple of métro tickets or rent a Vélib bicycle and make for the Château de Vincennes: a storybook medieval castle newly restored from dungeon to turret. Take a picnic with you to eat in the Bois de Vincennes, the wood that surrounds it. If you forget, there are lots of shops and cafés across from the castle (we are still on the Paris métro system after all).