Make some quick cash from wintergrasp dailies..
---------------------------------
Pick up the 10 kills, 3 vehicle defends/kills, victory quest and the random collect quest. If your defending, pick up southern sabotage.
The match should take ~20 minutes.
You dont even need to actually do anything, just find a spot where alot of battles take place (ie front) and just do something else, hitting spacebar or something every few minutes.
If you complete 4-5 of the quests in 1 go, you should have:
53 - 66 Gold from quest rewards
14k - 17.5k Honor + ~1k from HK's and end of wg rewards
1 or 3 WG marks (for disenchanting wg rewards, but this has been posted before)
Take your honor, go to the honor reward area of stormwind, and purchase a Scarlet Ruby.
Now cut that gem into either a fractured (which sells for ~95G on my server) or runed (which sells for ~90G on my server) and sell it.
If you complete all but 1 of the quests, Its not really worth it to go back just for that quest.
---------------------------------
Not 'great' gold, but its ok gold for ~20 minutes of work, you will receive 150G... Every 2nd week you will be able to get an extra scarlet ruby, so thats another 90-95G.
---------------------------------
I have 3 80's and working on 3 other toons (using RAF) so that would bring the bi-weekly gold earned up to:
3 80's -> ~400G each x 3 = 1200 Gold (2 hours of work in total)
+
6 80's (2 accounts, multi boxing) -> ~400G each x 6 = 2400 Gold (2 hours of work in total)