I love shopping at Ikea more than a shopaholic at a clearance sales. For starters at the front door you get your free paper measuring tapes. I usually stock up with a bundle of these. On my last visit to my favorite store I picked up a few extra rolls of the non-slip plastic drawer liners. I have been searching for the perfect warp packing for the warp beam and I found it in the kitchen accessories dept in Ikea. It costs $20AUD per roll and the width is 50.4cm and length is 150.4cm.
It works like a dream between the warp threads and is thick enough to hold the tension. Just prefect.