Clothes Storage ideas

Hi there, We are a family of 6 and our hybrid is starting to get a little tight spacewise as the kids are getting older and now they want to bring our dog along. I am looking for ideas or suggestions for ways to store our clothes? Right now we use one of the bunkends which works ok, but we really need that space for sleeping and our bags of clothes get thrown all over. We drive a truck so no storage options there. Thanks in advance!