First off, I'd like to quote hyper_speed's topic on the wrapping paper dupe.
http://www.mmowned.com/forums/wow-ex...ure-guide.html
I got the idea of trying out what was done in that dupe, but in a different way. On one private server I play on, I accidentally broke the gold limit and bugged myself. I submitted a GM ticket, but then it hit me: the 249 item buying macro he used.
I shift-clicked a gold bar (on the server its worth depends on which you buy). To my amazement, I bought 249 of them and they stacked with my other two, but they only sold for 62s (wtf?). I picked them apart, individually selling them for 10k a piece, but when I sold the whole mass (listed as 62s) it all sold for 300k or so. It was cheaper to buy these in mass and resell them. Through this method, I fixed my gold limit problem as well as gold supply.
Try this out. Haven't attempted anywhere else. Posting 5 minutes after I figured this out.
If this has been posted, I take no credit. If anything, it's a different method from the wrapping paper.