In the wake of the Tiger Woods debacle, The National Enquirer has posted on its Website a list of signs that a husband may be a "cheetah."
We now return you to regularly scheduled programming, already in progess.
His car is different. The passenger seat has been moved, the radio is tuned to an unusual station or there are unknown hairs inside. Watch for new cell phone patterns. A cheater turns his phone off when you're together because "she" might call. He sometimes gets middle-of-the-night calls, and may leave the room to have a phone conversation. If you have access to his telephone bill, check it for repeated unknown numbers.