Earlier quoted context omitted.
I've found the best way to do this is: * Have a proper emergency fund (6-12 weeks). You should not be counting on any pay after you give notice. * Have references outside of your immediate current manager * On Friday, "today is my last day" * Still be honest why you're leaving Two weeks notice is a courtesy you're not required to extend to an employer (EDIT: This is US-centric advice, please verify this is true in yo…
Why would you not give 2 weeks (or really any reasonable time) notice? What do you gain from not doing it? (especially compared to the hassle for your employer and the potential of it coming back to haunt you)
"Reasonable" is up to you. As I said, notice is not (EDIT: as asked by other posters, this is US-centric advice. Please verify this applies in your jurisdiction) required. An employer is not required to provide you with any notice to terminate you, and therefore I only provide notice if I believe the work relationship will be amiable for the duration after I give notice.
Sometimes, you gain nothing from giving notice, and I refuse to allow fear ("hassle for employer", "coming back to haunt you") to drive my decisions.