I am fortunate enough to have a great LQS that I sew in every friday for Quilts of Valor. They have a fabulous 40% off room like none i have ever seen.. not filled with fabrics no one wanted to buy.. Joann brings in such amounts of fabric weekly that she is able to offer these fabulous fabrics for less the room is filled with about 200 bolts all the time and always changing ;) I also get 10% off in the store ;)>
I do however find fabric in other places.. I have people who know I sew and donate fabric to me.. if I can use I do if I cannot i pass it along to a local senior centre or thrift store. I have advertised on the local freecycle for some and also garage sales believe it or not I find brand new with price tags on :):). The yellow and black carpentar star I have been working on came entirely out of the sale room:)>