My husband and I will be in Paris for 4 days in early July with our 13 and 15 year old, staying in an apt in the 4eme. Both have grown up eating french food and can handle themselves in just about any dining establishment, but we'd like to keep it relatively casual and easy on the wallets. Any recommendations? Not just lunch and dinner, but a good glacier (is Bertillon still worth it?), chocolatier, patisserie etc..I lived in Paris 30 years ago but last time in Paris I was so disappointed by my old standbys!