Woman nicknamed "KT girl" after visiting more than 450 Kwik Trips across Wisconsin

MILWAUKEE (CBS 58) -- There are more than 450 Kwik Trip gas stations across Wisconsin, and Cassandra Berger has been to almost all of them.

Berger is from Onalaska, and she's been to so many Kwik Trips that she's earned the name "Cassandra Berger, KT girl." 

"Because I'm obsessed with Kwik Trip," Berger said laughing. 

The moment she walks into a Kwik Trip she makes sure to chat with store employees. She asks them what they love about working at the store. 

"As you can tell when you walk through the store, everyone's happy. Like all of the employees are happy," said Berger. 

Berger has her own YouTube series partnership with Kwik Trip where she documents her experiences. 

She has officially been to 457 Kwik Trips. 

And there is a challenge for Berger, as there are stores outside of the Wisconsin area too.