As the saying goes, the graveyards are full of indispensable men. Life will go on without you at your old job. It may go well; it may go poorly. Either way, it'

As the saying goes, the graveyards are full of indispensable men. Life will go on without you at your old job. It may go well; it may go poorly. Either way, it's not your problem. You gave them plenty of notice already, if it was a big deal to them they'd make it worth your while to stay and they haven't. Don't feel guilty about treating employment as a business transaction; your employer doesn't.