A few weeks ago I posted here about trying to use bubble wrap as warp packing material. While it started out fine it ended up being far from ideal.
I just am finishing up a 12-yard warp and have made a switch to bamboo blinds as packing material. This was suggested by Laura Fry. The bamboo is wonderful! I wish I had switched to it years ago. It's so easy to wind on with and holds the yarn tight. I will never go back to using kraft paper.
And FYI, just yesterday I noticed my local Bed Bath and Beyond is selling 13 x 72 bamboo table runners for around five bucks. Much cheaper than what Home Depot is selling their 15 x 72 blinds for. 13 x 72 isn't wide but if you only need it for scarves and such these would work. A plus is that you don't have to remove any hardware from the table runners.