I could use some help re: home security
I just got in from work today to find my front door wide open. I looked around the house and nothing seems to be missing. But I'm still pretty concerned. I've noticed that my doorknob has been getting more and more scratched up, and that my key struggles to get in/ turn the lock. Today, though, it took an exorbitant amount of effort to unlock the door. My first thought was honestly that it would need to be replaced.
What can I do?