Not that I'm condoning spying on your spouse, but we did talk about ways Tiger Woods could have avoided his current situation. If you suspect foul play, Suzanne Kantra has tips on how you can do some sleuthing with gadgets.
Granted, several of these are no brainers, like checking voicemail and mobile phone addresses - but you may not have thought about E-ZPass and frequent flyer accounts. Personally, I think if you feel compelled to go this far, the lack of trust in the relationship is a good sign that it is doomed anyway. Oh, and if you check browsing histories, chances are you are going to uncover some sheeeeit. It might not have anything to do with cheating, but its going to result in a big argument anyway. It's probably best not to go down that road. [Techlicious]