Man, I have to push back on this one. Twenty minutes every single night means you are doing laundry 7 times a week, which adds up to over 2 hours anyway, plus you can never just relax at 8pm because the timer is hanging over your head. What happens when you go to a ballgame or out to dinner on a Tuesday? Now you either skip it and feel guilty or you are folding socks at 11pm. The Saturday thing sounds bad but at least it is done in one shot and the rest of your week is actually free. Your wife counting 21 days of a clear floor is cool and all, but you traded one big chore for a small chore you can never escape.

Buddy did same, 20 sec max, no thinking, just move.

The next level of this is making the list work both ways, so instead of just tracking what's in there you add the date you bought stuff. Then you can see at a glance what needs to get eaten first before it turns. We started doing that and it basically killed the whole "mystery container in the back" problem. You just scan the list, pick the oldest thing, and build dinner around it. Takes like 30 seconds a day and saves way more than $9 of feta every month.