The U.S. Postal Service estimates it will deliver more than 15 billion pieces of mail this holiday season. Here are some tips to keep those items safe.

The Postal Service offered these 10 secure shipping tips to ensure that your packages reach their destinations.

1. Avoid sending cash by mail. Checks and money orders are safer than cash and may be canceled or reissued in the event of theft.

2. Don’t leave delivered mail and packages unattended. Just as wallets and purses shouldn’t be left on the front seat of an unlocked car overnight, mail and packages shouldn’t be left uncollected in mailboxes or on front porches for any length of time.

3. Consider an alternate shipping address. Customers can arrange to have packages delivered to neighbors who are home during the day or get packages delivered at work, if permitted.

4. Change the package’s address – while it’s in transit. Customers who know they won’t be home when their package is delivered can try USPS Package Intercept. Prior to delivery, most domestic package shipments can be redirected back to the sender, to a new address or to a post office to be held for pickup.

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