Fabric shopping in Paris

Hi everybody. I am looking for tips on shopping for fabric in Paris. After 4 and a half years of devoted parenthood, my husband and I will make a short trip without the children. We love them and all... but this promises to be SO wonderful without them :) I will be mostly inclined to buying fabric for me. Rayons, Viskose, maybe a silk if it is not extremely expensive... or I don´t know.. what would you recommend? Maybe someone has some tips on what and where to buy... and most importantly what are the names of fabrics in french... this I need to learn. Tips on food, drinks and music will also be appreciated... and if there are any bike fans like us... also some tips about a paris bicycle map (if something like that even exists). I will be truly thankfull for any info. Maria