A really simple tip/guide for those that afk alot and want to make a buck while doing it.
Windwool cloth, as cheap as it is right now can easily profit you around 1-7g a stack by crafting them into cloaks and vendoring those.
Crafted Dreadful Gladiator's Cloak of Prowess - Item - World of Warcraft Sells for 17g, 4s, 27c and aslong as you don't spend more then that on the Bolts or Cloth you can make a tidy profit. You can learn to craft the cloak through the usage of your Imperial silk cooldown. If for example a stack of Bolts cost 70g on your server:
17g (4 bolts equals a cloak) * 5 = 85g.
The break even point is a little bit over 85s/cloth or 4.25g/bolt, so aslong as you stay below these values when purchasing the cloth, not only will you inflate the economy a bit, but you can make a nice and steady profit while you are at it! If cloth prices are really low on your server, you can even make up to 3-4k an hour with regular cloth postings ^^