How I Saved on Currency Exchange With Wise and IBKR

an exchange rate hack that saved me a thousand dollars:

1) connect Wise with IBKR
2) move same currency to IBKR (USD to USD)
3) add limit orders for EUR.USD e.g.
4) free SEPA transfer from IBKR to any account

IBKR commision for 250k around $5
Wise fee $1000