There are the top tips for making 4story Luna for low level characters, specifically under level 20 even though these rules can be applied to all levels in the game they really can make or online certificate course your bank at the lower levels.
Do not spend 4story Gold on unnecessary stuff such as weapons/armor at the AH. Many players fall into this trap when they look at all the awesome gear they could deck out their character with. You will realize that quest rewards were good enough to online video courses you through leveling. You might sometimes be decked out in all greens but it is a lot cheaper than buying an awesome item and replacing it with a quest reward a level or two down the road. The exception to this rule, of course, is twinks but if you are creating twinks then you really are not worried about lack of 4story Gold.
Dont do this one too often since it will take a lot of time away from leveling to get going. You will have to watch the market for about a week or so to get accurate Auctioneer data and you can lose as quickly as you make it at the AH. Just focus on online certificate course item and watch the prices like a hawk and buy when its low and sell when its high. Easier said than done, I know! It does take practice but practice makes perfect and this is the only viable way.