I recently went through all of my personal bins and got rid of five black trash bags of odds and ends I knew I would never use. My friend has a craft booth and is on a budget. (she is putting her child though college). There was so much I couldn't even think straight while searching for a piece, "I know it is here somewhere". Now these are not all quilting fabrics. Some were denim, upholstery, and assorted blends of dressmaking weight. I say personal bins, because I have a bin on donated fabrics I pull from for a designated charity everyone knows I support.
It is liberating to help someone else and manage the amount of fabric hanging around that I have gathered for years.