Singer/actress Jennifer Lopez and her husband Marc Anthony made a vow to each other on their wedding day in 2004 - to avoid working at the same time. The high-profile couple try to avoid conflicting schedules so they can spend as much time as possible together. J.Lo tells American magazine Glamour, "We made all these promises to each other in the beginning of the marriage, because both of us have difficult careers to manage with a partner. "We don't have nine-to-five jobs; our day could be 24 hours long if we let it. So you have to carve out your time and make your agreements: 'We are going to travel with each other. If I'm working, you're not going to work. If we both have to work, we're going to make sure we keep that to a minimum.'"