If you have someone in your family in the military, or you just want to do something nice for the holidays and send a package to a soldier serving our country, there are a couple of things you need to know.

The United States Postal Service is the only authorized carrier to deliver to military bases overseas. And the deadline to send packages for Christmas is way earlier than you might think. Shipping deadlines vary with the zip code of the base, and some of them were as early as November 6th.

Blackfriday.com has a comprehensive list of deadlines to send packages to your soldiers, based on the first three numbers of the zip code of the base. There are also tips from USPS on addressing your shipping label correctly, which is critical to getting your loved ones their Christmas packages. The Military Mail Guide is a valuable resource for getting those gifts delivered overseas, especially if you've never done this before. Maybe you're just trying to do something nice for someone who is serving our country, and won't be home for the holidays? Then, thank you so much from this former military mom!