This article got me thinking: what bad habits do you have/had that you would like to kick or already got rid off?
After living outside the US so long, I don’t reflexively say “bless you” when someone sneezes, nor do I first offer my hand for a handshake to the opposite sex (many awkward declined handshakes…)
Stopped drinking soda a year and a half ago. Before that I was addicted to diet Coke and drank at least one a day.
Also stopped lying about 25 years ago. Before that I told a lot of white lies. I’ve found life is much simpler without prevarication and blessedly things usually turn out better for it. I find people are really understanding when I say something like “I’m sorry I’m late. I got distracted and just didn’t leave enough time” or “I know I said I’d come but I could really use a quiet night at home. Can we reschedule?”
I made the conscious decision to change after reading Sissela Bok’s Lying. I’d highly recommend it. It sweeps away a lot of the excuses we give ourselves for telling lies.
Engaging in political discussions on FB…I know who agrees with me and who doesn’t but I don’t want to sully friendships over disagreements. I instead discuss things via private messages with those who share my views. It drives me nuts to see people try to persuade others to jump on their bandwagons. I have yet to see that happen
smoking, thank God in heaven.
sugar addiction; I still like some things as long as they are truly magnificent, but I don’t eat just *any sweet thing like I used to.
Biting my nails. Finally stopped about 20 years ago.
Sugar in my coffee. I made a New Year’s resolution at the coffee machine about 30 years ago. I still often do use cream or milk (or even "whitener’).
I need to stop chewing on pens and pencils! I’ve done it since I was young. Can’t seem to stop. Already wore one tooth down so much I had to get a crown.
Ack, GMT, would that be not extending your hand to women?
I can only think of ones I should give up and not ones I have!!
I’d gladly do this if our portions weren’t so out of control here in the US. At home, I try really freaking hard not to waste food but I don’t remember the last time I went out and didn’t have leftovers. That’s what take home containers are for 
I’m clear of the others (thanks, Euro-momma!)
Habits I’ve kicked: biting my nails and saying “like.” I also don’t engage in political debates on facebook anymore.
There are many I still need to kick.
I think taking leftovers home is great. Not only does it save food not being wasted, it saves on the associated costs of fixing another meal. I think the point is to not have food thrown away, the reason why many college dining halls have gotten rid of trays which encourage folks to take too much. I don’t care for styrofoam takeout containers, though.
I’m with others on having bad habits I need to kick. 
Stopped drinking diet soda, regular soda, and fruit juice about 20 years ago. Did it cold turkey and switched to water and black coffee.
Now that you guys mention it:
I used to chew on my pens (welllllll, I sometimes still do) and nails but I stopped.
And I stay clear of all/any political discussions on FB. No need to walk through * that * minefield.
Those of you who were able to kick the nail-biting habit, how did you do it? I have bitten my nails for over 50 years and have had no luck stopping (except once in college for about 9 months), but I keep wanting to try since I hate how my nails look so much. I’ve tried different things, but none have worked for me, so any suggestions would be welcome!
If you go get yourself regular manicures that helps.
I used this (Daby) http://www.cosmeticslk.com/daby-nail-hardener.aspx. and will power. This isn’t one of the nail polish which tastes bitter but once my nails started growing even a bit they were super hard so didn’t break or split. Thrn once they got long enough for colored polish, I started getting regular mani’s. Now I do my own mani but in the beginning its better to let a pro do it.