Safe journey to those travelling back to their hometowns or just visiting relatives. Remember, don't drink and drive! Don't speed. Have a good rest before hitting the road. Don't drive if you're sleepy or drunk. Again, do not speed!
Erm, what else? Drink lots of water, eat lots of fruits and vegetables after pigging out on those love letters and mandarin oranges.
Okay, sounds like I'm spoiling all the fun here. I swear, it's for your own good (and mine too!).
Take care of your kids. Don't lose them in shopping malls.
Okay, okay, I'll stop now! Happy Holidays! :D