I jokingly refer to my truck as my "Rolling Lockerroom" during the spring. I remove my back bench seat to give me more room for my stuff. My clothes stay hung up on my garment rack, gear bag in back, and whatever else I need is right there including a binder with all travel directions, hotel info, phone numbers, game times and partners.
The wife's car isn't as bad as my truck since she doesn't work as many weekday games but it to gets pretty bad.
After our 4 week vacation, my truck will once again transform into my "Rolling Lockerroom" to accomodate our summer tournaments.