I was going to say childcare...one or two kiddos in your care. (depending on childcare costs where you live to make an extra $200/week)
Do you have any crafty skill? I have friends who make bows, tutus, custom shirts, etc...and have made great etsy and local businesses out of it and stay home with their kids!
I started staying home when my son was born and a year later went after my passion with photography. I LOVE being my own boss now and doing what I love, while being able to not miss anything with my kiddos!
Be creative too! You'll make it work