Happiness, but as has been said there has to be enough money to cover your basics. It doesn't necessarily have to be from your salary though, if you and your dh are comfortable with him shouldering the financial burden.

I was made redundant whilst on maternity leave just over two years ago. We had always said that we couldn't live on just one salary, but it's not been as hard as we imagined. There are very few local jobs in my field, and none that would consider the restricted travel and part-time or flexible hours that I'd need to accomodate childcare (dh is frequently away for work).

Look very hard at all your outgoings and see what can be trimmed. We chose not to continue with a cleaning and ironing service, and are always keeping an eye on where we can save a little bit of money. Expensive holidays have gone too and we have cut down on luxuries like wine. We've just switched to a cheaper mortgage, and I'm going through all our insurances looking for more cost-effective cover. I suspect that when I do return to work we'll feel quite affluent by comparison.

If you could return to your current work without too much difficulty, then perhaps put some savings in place and give it a go? You won't know unless you try. Good luck to you and to everyone else hating their jobs.