A little old school but...

You tell you're at home and tell your roommates your going to check your MS01s when you mean your emails.

You are about to fall asleep and the sound of the Nextel commercial making that beep beep sound gets you wide awake with your heart racing thinking it's your branch manager trying to reach you.

When you start at Enterprise wearing a size 6 and leave ERAC a few years later a size 14 and are subsequently in debt because you have had to buy a new wardrobe 4 times over!