I'll give you a free one.
Don't use the Party Room method. There's a good chance you'll be banned if you keep transferring from one account to the other.
Don't let anybody scam you with a Party Room guide that says you can transfer large amounts at once without risk of losing it. There are no private servers and no hidden servers. If you drop 50k or more, players WILL show up, even if it's late at night on a server with very few people on it. I've tested this by dropping 50.1k worth of junk at 3 a.m. (U.S. Central) on a server with few people on it and nobody near the Party Room. By the time the balloons dropped, 14 people had shown up.
If you have to use the Party Room, trade less than 50k per shot, one item only, and change servers every time.
My mother had a RWT method (that was patched when somebody sold a similar idea and everybody started using it) that could transfer a lot at once. She now has another method that allows transfer of about 1 million per hour without any risk. I doubt she'll post it here, what with the fact that she's been banned.
Again: be careful about RWT via Party Room.
