Harry
2012-05-07 08:38:14
This is what I am doing:

Sold all of those in less than 10 minutes and made 2,4M profit; so if you exclude the time it took to buy/make them, you'd be making 14 M/hr.You don't even need P2P! F2P items can work too! You just need to find items with the highest buyability on GE, and largest low alch to GE selling margin.
Very simple yet makes profit on those junk items. With shop update last year, all items sell constantly for their low alch price, regardless of current stock. You also have the button that you can simply spam now. This makes each one I sell a profit of 8 gp to show vs the GE prices. As long as you sell your stack for a total price of below 30k to the store, you can simply spamclick the sell button without any confirmations popping up. It's such a simple moneymaking method, yet no one ever talks about it! It's so elementary, that it's genius!
Other items work such as willow logs, or any F2P junk item works well. As long as you buy from the GE for below the low-alch price, you will make a pure profit. I do find P2P items work better however due to there not being as many F2P bots anymore doing willows and such.
I don't anticipate Jagex doing anything to break this system, but they just might. There are many ways they could mess with it, such as allowing a limited number to be sold at one time, not allowing you to sell bought items, etc etc. So keep this in the members section please. If I see a similar guide posted anywhere else, I'll be very disappointed. Take this as a gift. Don't even tell your closest friends.
So please post some good profits margins you have found here :) Help everyone out with a good find.
Edit: BE WARNED - the selling price is not always the low alch price. Logs sell to store at GE's price. And many items do not sell for low alch prices. Check that before dumping a lot on an item! The low alch price is only a general idea, it may sell for less than that to the store!