After my mage (Doortje) hit level 85, I started focussing on making gold. Just enough to buy what I wanted to make me enjoy the game more than it already did. I leveled my first professions: Tailoring and Enchanting. I made the weekly cooldowns in cataclysm (special cloth to make bags) and discovered that by making my cooldowns every day, I generated a steady income for myself. This made me realize, what if I had all professions and would be able to make each profession cooldown every single day? One year and later, this is what I have achieved:
NOTE: This is just the tip of the iceberg. Doing my daily profession cooldowns is the bare minimum of my gold making.
Per month this is my average turnover of all my profession cooldowns per month (costs excluded, and no guarentee on fluctuations off the market price and counting 30 days as a month):
Doortje: 35.81K per month
Dorelai: 22.65K per month
Doreili: 45K per month
Dorelor: 18.9K per month
TOTAL: 122.36K per month