Saving USDT in your Binance account is relatively straightforward. Here are a few rules and steps to follow:

*General Guidelines*

1. *Enable 2-Factor Authentication (2FA)*: Add an extra layer of security to your account.

2. *Use Strong Passwords*: Choose a unique and complex password for your Binance account.

3. *Monitor Your Account*: Regularly check your account for any suspicious activity.

*Saving USDT in Binance*

1. *Deposit USDT*: Transfer USDT to your Binance account using the deposit address provided.

2. *Store in Spot Wallet*: Store your USDT in your Binance Spot Wallet, which is the default wallet for storing cryptocurrencies.

3. *Avoid Storing Large Amounts*: Consider storing large amounts of USDT in a hardware wallet or a secure offline storage solution.

4. *Use Binance's Risk Management Features*: Consider using Binance's risk management features, such as stop-loss orders, to protect your USDT holdings.

*Additional Security Measures*

1. *Withdrawal Address Whitelisting*: Whitelist your withdrawal addresses to prevent unauthorized withdrawals.

2. *API Key Management*: Use secure API key management practices to prevent unauthorized access to your account.

3. *Regularly Update Your Account Information*: Keep your account information up-to-date to ensure you receive important security notifications.

By following these guidelines and rules, you can help ensure the security and safety of your USDT holdings in your Binance account.