When you're prepared, you have a system readied in case things go wrong. The same rules apply to the holidays -- and even more so to business during the holidays.
It's almost considered sacrilegious today to leave work at the end of your workday or (for shame!) on a Friday and simply not check your work email again until you return the office during normal working hours.
Muttering 'Thank you' isn't nearly enough. To effectively express gratitude, and reap the workplace benefits, this UC Berkeley neuroscientist says you have to speak from the heart.