Here's an idea:
Start by simply logging what you consume during, say, 1 month. Make your list based on that. This will make your first "no buy" period more productive.
I like that idea!
I think we`ll track this entire week consumption as a starting point for what we are actually using during the week.
The experiment is not technically a no-buy period, but more of a "oops" we had to buy ____ and we learned ____ from it.
I want to make it a HUGE learning experiment for us and anyone who wants to follow along.