Some good suggestions already, having owned a couple of homes here's my two centavos:
-delay home automation indefinitely: current tech/prices aren't worth it
-create an owner's manual for every major system (including landscape/garden) and create calendar events with reminders for maintenance (upvote for turning AC on monthly even during winter)
-wait for at least a year before undertaking any remodeling. Get to know the home and how you live in it.
-spend time gardening. It's one of the most pleasurable parts of owning dirt. Take it easy on the new purchases of tools, bird feeders, plants, etc. It adds up fast. Read the book "The $64 Tomato: How One Man Nearly Lost His Sanity, Spent a Fortune, and Endured an Existential Crisis in the Quest for the Perfect Garden"
-help your neighbors, even if they're weird, disagreeable, or believe in UFOs.