If you've never lost a cellphone, you're either very lucky or a big ol' liar. With $30 billion worth of phones lost in the U.S. every year, we bet your phone has contributed to the heap at one time or another.

I can count on 47 hands the times I've seen a Facebook status update that says something along the lines of, "Holy crap, last nite was crazy weird. Lost my phone ugGGGhhhhhhHHHHHH. Send me your numbers or else we're no longer friends."

Then again, bars and nightclubs are not among the top places that people lose their phones. You should be most careful about dropping your device in coffee houses, pizza and church, among others. And keep an eye on your phone during Christmas and New Year's Eve, too — those are the times of year Americans are most likely to misplace their mobiles.

The below infographic was created by BackgroundCheck.org, which used research by Lookout Mobile Security. It details where and when Americans most often lose their precious phones. Basically, don't travel to Philadelphia to eat pizza at 2 a.m. on Christmas morning — or at least, don't bring your phone when you do.

Thumbnail courtesy of iStockphoto, spearcube