Bil is getting married in feb in Paris and all of the above are going. Wedding will be near arc de triomphe but we'd like to stay near gard du nord or the 9th (problem with taking car seats with and I'd like to minimise attempts at the metro with a double buggy - any tips on that gratefully received!). So does anyone know any good family friendly hotels around there that don't cost the earth and how big a room do you need to get 2 cots in (double or triple?).