Get FREE Tru Earth Laundry Detergent Sheets. Every Tru Earth Laundry Detergent Sheet is an ultra-concentrated, pre-measured sheet that you can just toss right in the wash. Even better, the fully recyclable cardboard packaging means less bulky plastic containers from potentially ending up in our landfills and oceans. To get this freebie, you need to click on the “Get FREE” button and fill out the form. Check your dashboard soon to see if you’ve been selected. US only.