I tried developing a Polaroid negative or two recently. It's a simple process really but involves cleaning it with bleach. Actually, you clean only one side of the negative film with bleach. If bleach gets anywhere near the side with the actual image on, you get to watch it fizzle into oblivion as you cry and hurl curses and abuse at the harsh world of analogue photography. I like the gnarly look of this picture now and still have the original photo. The solarised green at the bottom of the bottle is actually how the Polaroid came out and not due to my clumsy dark room skills.
In case you thought Polaroids were just for kids and hipsters, here is a bit of closer detail of the above image. The negative is a lot bigger than a 35mm photo or digital sensor at roughly 9 x 12cm. It's possible to see the beads of condensation on the glass and the feathers that are part of the DHC logo clearly. I read about some photographers using Polaroid negatives for magazine and poster prints and can believe it!