Yea. We did and we followed them kinda. lol. It was just nice to set up boundaries before separating.
We'd talk once a week about us. Every other encounter wouldn't involve deep conversations. (this ended up to us talking about 2 times a month...which was good enough).
We wouldn't hang out right away. (Yea, whatever. After 4 days without talking, we hung out at least 5 days a week throughout the separation

)
Divorce was not an option (he never brought it up, and I never even thought about it).
No computer/phones while spending time together.
There were other rules...but they vanished quickly as we really just took it one day at a time. That seemed to work best. That, and not pushing. We did drink a LOT of wine though. LOL

I kinda look back at our separation with some fondness. We'd stay up til 3am talking...drinking wine...laughing. just like when we were dating. It wasn't always good though, but throughout our separation, we learned each others boundaries and needs.