I've got a bass I'm wanting to let go, but CraigsList is failing me. I don't really want to pay fees for eBay, so I must peruse the Classifieds for someone wanting one. But I've never shipped an instrument before. I have a hardshell case, but do I have to put the case into a box to ship it? Or could I pack the case with newspaper and/or bubble wrap to keep it safe inside? Any help/guidance/shared experience is greatly appreciated.