By using smartsave, you can easily and flexibly manage your idle cash. When placing limit orders for US stocks that are not executed, you can still generate income. If the US stocks are executed, the amount will be automatically deducted. After selling US stocks, the idle funds from the sale can also be automatically transferred to the money market fund, generating additional profits. This helps prevent you from forgetting to redeem funds, keeping your cash active. This way, you can gradually accumulate wealth.