I found this great tutorial awhile back over at Design*Sponge for making Vintage Sheet File Folders. I was a little skeptical at first about using spray adhesive (I used spray adhesive all throughout undergrad for art projects- it was a love/hate relationship). I was worried the sheets would get all wrinkly while trying to glue them to the file folders, but I was pleasantly surprised at how easy it was!
What a cute and inexpensive way to dress up boring file folders! All you need is a fat quarter of fabric (any fabric will do, it doesn't have to be a vintage sheet!) and a folder, spray adhesive, a credit card (to smooth the wrinkles out) and scissors or a rotary cutter and mat.