Covenants Method:

Step 1: Collect Company seal scroll
Step 2: Free up inventory space.
Step 3: Run dailies. All Dailies till inventory fill with turn in gears(blue,green, red)
Step 4: Purchase gear with special coin(allagan, poetic, illyshire, etc). Note, DO NOT BUY ARMOR GEAR. Purchase accessories only. Armor cost more for same amount.
Step 5: Pop company seal scroll and turn in items.

I find that with a slow pace day or two of dailies items and purchasse I gain 80k in turn ins. Nothing aggressive, just normal play. You could maximize turnaround if you run dailiess multiple times, but you no longer get special coins.