Yes, actually! Here's a few that come to mind.
Don't go out alone at night, period. If you can't protect yourself, don't go out alone at all!
Stay in shape. Drink plenty of water and make sure to get enough nutrients, exercise, and sleep!
If your shelter is self-sustainable, make sure to fortify it so zombies can't get to you.
Stay in good spirits! It's not easy getting by out here, but if I couldn't stay positive through it all I'd lose my mind.