I hear there is a "tokkul" method. I'm not to sure how that works though lol.
Trade Method #2: Tokkul Trading
Requirements: P2P, 200-300k starting cash
Transfers ~2.75M once per 4 hours
Suggested: Karamja Achievement Diary EASY TASKS (15 Agility, 40 Mining required)
The gloves allow for a -10% loss / trade, without gloves the loss is about 20%
Tokkul Trades will be done twice a day (5.5M per day). I will need to use your account for about 5-10 minutes per trade, so in total I will be using your account for about 10-20 minutes total in a day.
Advantages: Great for Pures, low levels, and those worried about Bounty Hunter
Disadvantages: Max of 5.5M per day
That's from r2pleasent's thread.