I won't drink and drive. One drink limit if I'm driving, and usually there for a while or someone else drives.
This is one of mine. And if I am driving anyone else’s kids I won’t even have 1. Not so much because I think it is unsafe, I just wouldn’t even want there to be a question about how much I had. Not difficult for me because I am not a big drinker anyway.
I also don’t text and drive, ever. The few times I’ve been tempted I remember that I have 3 kids that watch everything I do and they will learn more by my example than they will what I tell them. When my oldest started driving it was easy for me to remind her that I don’t text and drive and if after 30 years of driving I don’t feel comfortable doing it, she certainly shouldn’t.
I also tend to be a rule follower. I am not actually sure that is a great trait in me—it goes along with tending to avoid conflict.
I am fairly introverted and dislike most big social events—weddings, funerals, showers, graduations, reunions etc. I would prefer to avoid all of those, but I require myself to show up when possible for the people I care about. If it is someone I don’t know well—wedding of a 3rd cousin I’ve met 3 times—ok to send regrets, but otherwise suck it up, put on nice clothes and a smile and do it. Often it is not as bad as I am expecting it to be.
My other ones are more household related and not hard and fast:
Do at least one load of laundry every day.
Empty the dishwasher as soon as possible and then reload as you go.
Clean up immediately after dinner.
Check for trash in the car when getting gas.
Sort the mail over the paper recycling bin.
Handle and deal with school forms the day they come home.