It's a story doomed to repeat for all of time: Man cheats on wife, wife catches man, wife eagle-claw-slaps man, man runs away, wife chases after man with a golf club, man crashes car. This could have been prevented.
As Tiger's scandal winds to a middle, we're hearing more about what actually happened, and all the sad mis-uses of technology that led the man-of-many-races to this point. Here are the mistakes he made, and how you can avoid them to better cheat on your spouse.
Come on El Tigre, this is the most obvious one. Never use your own cellphone to call your mistress! Seriously, how hard is this concept? Your wife can check your cellphone bills, check your account status or even check your phone for weird calls. Just buy a new pre-paid phone and use that instead. You'll want to always keep that on vibrate, so your spouse doesn't question why there's a weird ringtone going off.
As Mark Wilson suggested, if you're going to be dumb enough to keep keep your cheat-pal on your phone, save her as "Mom". Or "Grandma". Or "Chiropractor".
Make sure your spouse doesn't have any kind of tracking device on you. This means turning off AT&T's FamilyMap, or any similar services from other providers. Hell, you probably just want to shut off your main phone entirely and claim you were somewhere without reception.