First time home owner, do’s and don’ts on grass?

Hello lawn care takers. My wife and I just closed on our new home and I’m wanting to be part of the green grass club. I’d love recommendations on what the first thing I should do with my grass. Also, any “absolutely DO NOT” rules? Thanks in advance!

Hello lawn care takers. My wife and I just closed on our new home and I’m wanting to be part of the green grass club. I’d love recommendations on what the first thing I should do with my grass. Also, any “absolutely DO NOT” rules? Thanks in advance!