When do you normally turn your kitchen into a spacecraft?

Just curious when everyone else covers the kitchen and cleans the home for Pesach? I normally wait until after Purim, because I will likely bring some chametz home late at night to snack on before passing out drunk.

For those that don’t know what I am talking about, here is a blog post from 2012 with pictures: https://machupicchuthis.wordpress.com/2012/04/23/tin-foiled-covered-kitchens-of-the-crown-heights-jews/