3. get over what will and will not happen while you're gone.
Your kids will eat chemical-laden fast food. They will stay up past bedtime and return to you under-slept and overstimulated. They may experience carte blanche license to eat sugar and run and yell. And worst of all: they will have adventures and be gorgeous and laugh and smile and jump and YOU WILL MISS IT. I longed for the bony limbs and soft bellies of my children while I was gone. When, in the early evening our time, we'd call them in the morning their time, they didn't really have the time to talk to us... But what they did deign to say lit up their eyes, and I ached to see those sparkles in person. To leave them, you have to bear this.
4. Take the chance that you and your partner won't really enjoy being alone together for that long.
The fear of disappointment and the pressure to have an Epically Romantic week might be daunting. It was, a bit, for us. But we decided we'd refuse to be disappointed, we'd each ask for what we desired, and we'd eat amazing things (if we ever woke up from the jet lag) at the very least. Our actual experience was far better than our helpfully abysmal bottom-line expectations.
5. plan a trip that is doomed to feel "too short" and to miss some "must see" places while you're there.
Accepting that (a) we didn't have time to do either Paris or Amsterdam justice and (b) if we talked to anyone about the trip, we'd invariably hear, "I can't believe you didn't _____" helped us just GO. You, too... whether you go to the Oregon coast, the Cambodian temples, or New Orleans' JazzFest, you'll do it "wrong." Embracing that will help you go, in the first place.
6. resist the pressure to have the quantity and acrobatic quality of sex you'd have had a decade earlier.
You've had children. You had to prepare them, your home, your own luggage, and your workplace for your absence and your travels. You had to finance all this and try to plan a few details of your trip. If you didn't manage to get a Brazilian wax (or in my case, to cover the gray roots that are beginning to peek out in alarming numbers), chalk it up to the vagaries of aging. You can still do some pretty scintillating things in a foreign city where you know no one, and the memories will still bring a smile to your face, long after. Or so I've heard... And I didn't say you have to not HAVE amazing adventures... I just said you have to take the pressure off, or you won't likely go. See the difference?