If you don't have kids, you probably don't have someone reminding you how many days there are until Christmas every five minutes. Even my three-year-old seems to know, down to the minute, how many days we have to go. Take a quick glance at a calendar and you'll see that the clock is rapidly ticking. That means if you are mailing stuff and want it to arrive by December 25th, here are the mailing date deadlines, as recommended by the USPS.

First Class Mail - Send by December 20th

Priority Mail - Send by December 21st

Priority Mail Express - Send by December 23rd

USPS Retail Ground - Send by December 14th

These dates are for delivery to the continental United States. Visit www.usps.com for dates to Hawaii or Alaska and to Military FOB's.