I'm pretty sure I will O early next week while we're on vacation. With three kids (11, 9, and 5). In one hotel room.
I definitely don't want to miss this cycle, but am not feeling super creative in how to make it happen. Any thoughts/suggestions other than being very very quiet (we're not hunting rabbits, after all)?

Re: Need your help to get lucky. :)
Call the hotel and see if they have kid-only events - some places have movie nights, etc.
The hotel might also have a babysitting service. Or have some other suggestion. I don't know where you're going on vacation, but I think some attractions - zoos and things - also have supervised kids-only activities. If something is near your hotel, you two could sneak off for an hour without the kidlets being the wiser.
All you need is an hour!
An hour? shoot all we need is a few minutes! ;-)
Can you not swing some alone time in the shower or have a midnight rendezvous?
If all the other suggestion about getting away from the kids won't work out I suggest the shower/bathroom deal. Turn on the TV to their favortie show and you could be all finished before they even notice you're gone.
Good luck!