Grinding in the World of Warcraft is a necessary evil. Whether it's a level or gold grind, you're going to need to keep these three tips in mind when you go grinding:

Be prepared - when you're grinding, you always need to be prepared. You'll need to be able to heal yourself quickly, so that means lots of water and food. If you're a mage you should have your spells ready for you and your party so they don't have to waste inventory space.