Saw this down at Big W Marion today, you can get 1 metre for 25c (down from 50c) or 15 metres for $2 (down from $5, now a whopping great 13.3c\metre).
Can't speak for how good it actually is, but I'd imagine it's probably left over from Back to School or something. There was a heap of rolls there as well so maybe stock up if you forsee a need to cover many books soon.
Not sure if it at other stores but doesn't hurt to have a look to see if they are I guess.