[quote] you said 3 columns, what are the other two columns? [/quote]
Here you go, from the post you quoted:
My suggestion is to write up a list with 3 columns. 1. One would have the non-negotiable items that you won't budge on (right of first refusal is an example, that week-ends are alternated, even with a 50/50 physical custody arrangement, this way both parents get "fun"time with the child), 2. items that you would like to have, and 3. items that you really don't care about.