Check your credit report!
As you probably know by now, you can get a free copy of your credit report (one from EACH of the major reporting agencies) through https://www.annualcreditreport.com/. (You East Coasters will have to wait until September, though.) Anyway, if you haven't already done so, I highly suggest that you order and review your credit report. Due to my Dire Financial History, I truly dreaded seeing in black and white what a mess I managed to make of my fiscal life--but you know what? There was an address on my report--a PO Box in Cali--with which I have never been associated. Apparently, in 2002, someone may have made an attempt to Identity Theft me. (I pity the poor bastard who tried to obtain a credit card in MY name, though.) Although all of the open accounts were, in fact, mine (unfortunately), it's still good to be aware of the activity on your credit report--especially as we're all at the age (if not the actual STAGE) of mortgages, car loans, etc.
And now, if you'll excuse me, I need a stiff drink.