3 days on, 3 days off. Repeat. No extended breaks are necessary. I did take a little time off when I had to lay off lifting for about 2 months this spring. I had a back injury I had to let heal. No point in taking creatine if you're not lifting. But other than that, there's no need to take an extended break. Josh, I'd say you should be fine after 2 weeks off.
Drew, when you say "it almost killed me," are you being literal? Did you have a kidney problem from not getting enough water?
If both of you try this method out, I'd be interested in hearing how you like it. So good luck and let me know how it goes!