Coffee filters for applique' stabilizer
My "Purple Thang" ... so many uses!
Old paint brush to clean lint out of my sewing machine
Scotch tape to remove those last bits of thread after ripping a seam
Empty container (coffee can, peanut can, etc.) for a mini desktop trash can
Old canning jars to hold various pens, markers, and other "vertical" sewing tools. They look pretty with old buttons in them, too. :)