Bringing this thread back from the dead on purpose!
I just got rid of the wedgies I made and bought something from TV. I think they call it the seat caddy or something but I got the eBay version. Just a inexpensive black molded pocket - fits great, does the job perfectly... and I can actually use it for storage - my phone, the charger cable, the seatbelt cutter & window breaker tool... I'm a fan.
A pair for 9 bucks shipped? Its a steal.
http://www.ebay.com/itm/2-POCKET-OF...517?pt=LH_DefaultDomain_0&hash=item3ccf68e7a5