Do you like incorporating textiles into your art & craft projects? Sure, you can go to a fabric store when you need material--fabric stores are awesome!--but when you start looking at second hand clothing stores (or your closet!) as an alternative source of raw materials for your projects, you open yourself up to a whole other world of possibility!
Soft Leather coats and skirts can be cut apart and the pieces transformed into leather bracelets, little pouches, leather coasters, etc, etc, etc.
Do you need to do a scene in monochromatic blues? No problem: Old denim jeans will give you every shade from deepest indigo to palest powder blue, and then some!
Check out the corduroys, velvets, flannels and even knit sweaters...then mosey on over to table linens for even more variety! So many textures and prints to play with.
Try to question *almost* EVERYTHING you've ever been taught in sewing class--fabric paint isn't really necessary in most applications when ordinary paint, spray paint, markers, etc can also work. Sometimes it's okay to leave a raw edge. Buttons don't have to match and they don't even have to be store-bought--you can make your own!
If you check out the history of textile production, you gain a deeper appreciation for the work involved in creating textiles--all the more reason to re-use them rather than throw them away!