I have a few things...I developed these habits after a traumatic experience. Every door in the house can be unlocked, but I always lock my sliding glass door. I don't care if other windows or doors are open but I won't feel safe unless my sliding glass door is locked. When I take showers, I have to have several lights on. The hallway light, the nearest bedroom light, and the bathroom light. I cannot take a shower with the door closed, it has to be open. (If I have company, I'll close it, but I'm anxious the whole time and take really fast showers in that case.) All the TV's and radios have to be turned off while I'm showering if I'm home alone. Otherwise, I worry that someone may come in the house while I am showering and I will not hear them. Gosh, I'm making myself sound like a freak. I didn't realize how wierd I am about stuff until I started typing.

My only other safety thing is that my car doors are always locked when I'm driving and I always have my seatbelt on.