Hey Christopher!
I've been in a similar spot with overly friendly neighbors and and the key is to address it directly but kindly to make the boundary stick. Next time they drop by, invite them in for just a minute and say something straightforward like, 'Hey, I really appreciate your visits, but evenings are tough for me with dinner and work calls.' That sets the expectation without being rude. Follow up by suggesting alternatives, such as texting first or planning a coffee meetup on weekends. It shows you value the friendship while protecting your time.
If you're not comfortable saying it in person, a preemptive text could work well. For example, send a message like, 'I've loved our chats, but I need to focus on my routine in the evenings - mind shooting me a text before coming over?' This is polite and proactive, and most people get the hint without feeling hurt. As for a door sign, that might come across as impersonal or passive-aggressive in a shared duplex setup, so I'd save it as a last resort if the drop-ins don't stop. Remember, since you share a driveway, keeping things amicable pays off in the long run.
