If you google coconut coir bricks, you can find it a lot cheaper. The stuff they package and sell for reptiles or tortoises is more expensive then if you find it package for worm farmers and/or gardening, etc. like this one http://www.amazon.com/dp/B0029KHEJY/?tag=exoticpetnetw-20
This stuff was already moist. I know £18.99 isn't mega cheap but I did get a lot for it. I should be able to change out my viv another 2 times with what Ive got left.