Who doesn’t love Trader Joe’s? Mark Wahlberg — okay, Dan Van Kirk’s version of Mark Wahlberg — does. especially after he learned a valuable life lesson at the checkout stand. Here’s another in a series of “So Now You Do Know” PSAs from the Nerdist Channel.

But what if your town makes you bring your own reusable bags? We need a follow-up.

Watch more DVK-as-Wahlberg at the Nerdist Channel here.

Subscribe to the Nerdist Channel before you run out for some hummus and quinoa.