Oh boy, got a while...I am a walking poster child for what not to do. Oddly enough, I never had the urge to take up smoking, can't stand the smell. Drugs never interested me.
I don't drink soda pop either, but look out if there's a good bottle of wine, or a nice mellow whiskey around. I have been known to dance on the table and shoot out the lights on occasion.
I really need to stop this as an old inebriated woman falling off the table, shooting herself in the foot on the way down would not be a pretty sight when the paramedics came to clean up the mess. Besides, it's getting harder to crawl up on the table with a knee replacement

layful:
Just took up drinking coffee when I retired three years ago, but only in the morning and two cups is about it.
I stay up too late, and get up too early to have quality rest, but don't mind snoozing in the lounge chair in the afternoon if I give in and sit down.
I eat too much and need to lose weight, but really I am so over caring about it anymore. Let the good times roll, and me too...and that reminds me I promised to bake the guys a chocolate cake today. Okay, let's be honest on the outside chance I could go to hell for lying,
what the guys really want is beer, what I want is a chocolate cake.
Attitude wise, one of the worst things I am cultivating to a higher level of finesse in my dotage is telling people what I really think...I tend not to be tactful at times as my patience level is relatively non-existent anymore. I really do try to rein this in, but sometimes the devil just prods me.
Example, I intensely dislike ill-behaved children (which most are these days, and yes I know it's the fault of the parents and not theirs) and am not above telling the restaurant host to seat me in the kid free section. I get some stink-eye looks, but don't care.
Let's hear about your bad behaviors, bad loves company!