We never ever leave a door unlocked or leave our garage door unattended when opened. Our lanai sliders have a special lock won't allow the doors to be moved off tract. It's engaged each night and whenever we leave the house. We also have security lights. We have dead bolts on all doors.
When traveling we lock the garage door. Recently we came home to find our garage door open. We discovered that our neighbor's remote opended our door as well as theirs. We have lived side by side for many years and this was a first.
I'm always surprised at how many newspapers are left on people's driveways day after day. Our neighbor's would never let a newspaper sit on a driveway without taking action. Make an agreement with your neighbor's to remove them by a certain time and tuck it someplace discreet.
Our automobile doors are always locked, whenever we are not in the car the doors are locked.
If our cart is going to be parked for a longer time than usual, we throw the tow switch and it can't be started.
Garbage left out before the scheduled day pickup is a dead giveaway you're not home.
One thing I do that isn't recommended is open my door when a stranger knocks but I do have the telepone up to my ear when I open the door. I do pretend that there are other people at home.
Many people keep their blinds open after dark and they, plus all they own are highly visible. Not a good idea....
I am constantly aware of my surroundings.
Yes I'm vigilent because I worked in a field that taught me bad things can happend to good people so I want to lower the odds of it happening to me.