Is there anything useful I can do with this? I found some that hasn't been opened so it's still 'fresh,' but with all the cancer-from-deodorant stuff I've heard over the years I won't use this on myself if it's this old. BUT in art class I was taught to use old hairspray as a cheap way to seal up a charcoal drawing, so I was wondering if there was anything at all I could use this for. Thanks in advance! :)