And if you do this for two weeks and he complies happily thinking he has you fooled you hit him again :
"Ok, this seems to give us both some more security.. how about how we share our passwords for all of our accounts?"
You tell him the deal is the same, you both share passwords for accounts and the other person can log in at any time they like...
INCLUDING his cell phone records...
BOOM!
This could get interesting! The only thing I have in the back of my mind is, I already told him weeks ago that I was "done with snooping... that I could not control him if he decided to do something detrimental to our marriage... that it was on him" wouldn't all of this contradict that? If I can find the exact email exchange, I'll post it.
