If I were you I would transfer my money from cash to gold coins. So lets say I have $400,000 straight cash, I would buy $400,000 dollars worth of gold coins and then take a flight to Europe with my gold coins in a suitcase. Once I land I sell all my coins and I'm back to cash then I would get a bank account there (for me it would be Swiss) and then I would be tax free and have all my cash intact.
try to get on a plane with 400,000 dollars worth of gold coins. try it, to switzerland, or to cayman islands.... especially with this security-obsessed TSA.
there's a few ways to launder money. none of them is free. and none of them are as easy as walking into a bank, asking for clean money, and walking out with it.
the best thing you can do is to not have the money and contraband at the same place at the same time except when during a transaction. right before, or after, keep them as far apart as possible, and don't put all the money in one place.
there's a reason in movies they show ppl stuffing the doors of cars n shit, b/c that money can't stay in the country safely. the only 'safe' way to launder money is to create shell corporations in tax havens. tax-free means no questions asked. you heard the saying: the best records in government are tax records.... you have to go to a 'tax haven' country, create a shell corporation which does not have to file taxes or anything, and just deposit the dirty money as 'income'....
back in the day ballsy lawyers would fly the money down to the cayman islands themselves. you think you'll be getting 10k per month in cash, that's not enough to have to launder it in my opinion.
if you have the balls to be asking about this online you should have the balls to travel to a nearby airport and talk to a few pilots, see if one of them would fly you down to the cayman islands a few times a year.