One of Texas’ most infamous slogans started as a way to stop trash.

Resources:

https://www.texasmonthly.com/the-daily-post/here-is-a-whole-bunch-of-unsanctioned-dont-mess-with-texas-merchandise/

https://www.smithsonianmag.com/history/trashy-beginnings-dont-mess-texas-180962490/

History

https://shop.texashighways.com/dont-mess-with-texas

https://www.texasmonthly.com/articles/litter-did-we-know/