Any tips for hacking fixed monthly expenses?

Hi, new Redditor here 😊 I just bought my first home, a downtown tiny condo that I am so excited about!! Although owning is less than renting, I am still trying to limit my fixed expenses in light of my new mortgage, especially for cell service and Internet... I'm trying to ball out even though I work for a university, haha. Any tips on how to get a good deal?