I've tried the towel method and it works well but as James said, it's a bit of a pain if you plan on getting in and out repeatedly. Most of the time I just sweep the pleats like normal as I get in. Only occasionally do I have to get out and do it again because I missed a spot. For the REALLLLLLLLY long trips (>4 hours) I flip the back of the kilt up so it is sitting in the small of my back and sit on a towel. I make 16 hour drives fairly regularly so my girls can see their mother and I have yet to find a comfortable way to sit on pleats for the duration.