Like I said in another post.. I've been using/modifed two of my old Photo vest.. turn them around and pull them down over the seats.. (pockets facing toward the rear seat area) and bam.. instant small item storage/half seat cover.. hunting or fishing vest will work just as well too.
I had a couple of those seat covers on my TJ and the drivers side cover got torn up pretty quickly. They look nice and got me some nice compliments (and second looks from the cops going on base trying to figure out if they were IBA) but all in all I don't think they're worth it. I don't know if it was because they just didn't fit on my jeep right or what but I had them as tight as they would go and they were still loose. I'm not trying to shatter dreams or anything just giving you a heads up.