Credit Card alert should include spouse,too

In reference to the hint about notifying your credit card companies if you are going on a trip,especially out of the US be sure to let them know if your spouse is not cominmg with you.
I had a friend whose husband was overseas.One day she called her husband from (out of US), she buy a clothes and her purchased was declined.Her husband contact the credit-card companies to let them know that his wife was still at home(US) and had access to the cards.