Time and energy are highly valued in today's society. As the price of transportation fuel spirals ever higher, these two components of everyday life can be joined together to create synergy. Some companies, like Technip and Bechtel, have instructed employees to work a few hours extra every day, at regular hourly rates, to allow for a Friday off. Hence, the four-day work week. With today's technology, most white-collar workers can work from their home, office, or on one of those uncomfortable plastic seats in a busy airport. I worked on an article yesterday, typing up notes from a recent interview, while sitting in the lobby of a local emergency medical center while my mate got his leg stitched up from that morning's squash match at the local gym. (This is not an unusual occurrence, as any squash player will tell you.) Having a four-day work week may not mean we do not work during that weekday off. It may mean we are working, just not at the office. Most people I know check their email, take overseas calls, or think about next week's work schedule while "off duty." It's not because we live to work, it's because we reduce stress by not letting things pile up while we are out of the office. Will more employers be lifted by the recent groundswell of support for four-day work weeks, and take advantage of reduced gasoline or commuter costs, reduced traffic, and in some cases, lower overhead by turning off building air-conditioning more days per month? Are there other ways to save time and energy, as we head into what seems to be an unavoidable U.S. recession? And will saving time and energy lead to happy, more-productive employees? Or will employee productivity fall after the usual eight hours, and will we find the final one or two hours worked extra, per day, to get that Friday off, result in chitchat and net surfing? Time will tell.