It's REALLY hard coming up with an idea that will work from home - unless you have an online business or have skills that you could freelance with.

I know it's not ideal but is another option to get a casual job in the evenings when your partner's home or on the weekends? Like I said, not ideal at all but it would provide a bit more money and the added benefit is that your partner gains a new appreciation of what it's like to look after a baby! A friend of a friend did that and got a Saturday job working at the museum. She loved it.