You can do whatever you want - if you have a choice give 2 weeks notice. If you can't because you're starting another job right away, negotiate for less and explain why you have to give less so sometime down the not too distant road when you need a recommendation, you have one.
“I think if Thomas Jefferson were looking down, the author of the Bill of Rights, on what’s being proposed here, he’d agree with it. He would agree that the First Amendment cannot be absolute.” - Chuck Schumer (D). Yet, Madison and Mason wrote the Bill of Rights, according to Sheila Jackson Lee, 400 years ago. Yup, it's a fact.
Depends. If a worker is being pink slipped because of cuts, 2 weeks doesn't seem enough time to adjust.
If someone endangers others, an immediate booting out might be in order.
The 2-week notice thing isn't just for me or the company... the benefit to me is also with regard to those tertiary relationships. So while I agree that "life is about friends, family, hobbies, etc...", I have some great current friends that were former coworkers, and I'm glad I was never in a position that I had to screw them over by making them pick up my slack if I had just walked out on a job.
What I am saying is that the decision should (IMO) be strictly made on what will benefit you...what is better for the company should be irrelevant.
Now, you make a good point about co-workers, IMO. And that is a factor.
But if I didn't think it wouldn't negatively effect my future or people I genuinely care about - I will quit any job the second I wish to...and too bad for the company.
If they can lay me off whenever they wish...then I should be able to lay them off whenever I wish.
'What kind of sick and twisted toy factory is this?'
'We are all the sum of our tears. Too little and the ground is not fertile, and nothing can grow there. Too much, the best of us is washed away.'
"Better to be dead and cool, than alive and uncool."
Some companies will give severance packages here, many won't. But all have to pay unemployment, so I guess that's a form of "severance."
Who chimes "No Absolutes!" chimes absolutely.
In a skilled job the 2 weeks notice is good so that an employee's peers have the opportunity to get some knowledge transfer before that employee leaves. For example, I work in IT. I am a Senior Systems Administrator. If I just took a new job and walked out the day I gave notice I would be screwing over my employer and my peers in my department by not bringing them up to speed on what I do and what I support.
"You're the only person that decides how far you'll go and what you're capable of." - Ben Saunders (Explorer and Endurance Athlete)