My local supermarket had a 3 for £18 on DVDs last night, so I bought Iron Man, Batman Begins and Bladerunner.
Anyway, huge queues at the checkouts so customer services desk called me over and said they could process my purchases. I got home to find that all 3 dvds were still in their security cases
I was about to trudge back to the shop, but then

i remembered this thread about using them as a case for my PRS 500
2 mins with a screwdriver got them all opened, I'll start modding one at the weekend for my device (previously when travelling it's lived in my coat pocket - had to fish it out of backpacks and suitcases in the past pretty smartish before my wife threw more stuff on top of it

).
hurrah for busy supermarket checkouts