I tracked where every item was from during my Costco trip and saw just how much the US relies on global trade

The author's shopping cart at Costco.

Talia Lakritz/Business Insider

• During my monthly Costco shopping trip, I kept track of where every item I purchased was from.
• Most produce was imported from Mexico and Central America, which have been hit with steep tariffs.
• Trump implemented a 90-day pause on the "reciprocal" tariffs announced in April.

President Donald Trump's trade war has made shoppers, including me, pay closer attention to what they buy and where it's from.