Before filing, I'd refinance the house if possible, but not take any more mortgage on.
Do NOT lump your home & unsecured debt together.. CC's will hound you - your balance will keep rising and rising - but as long as you have no bank accounts they can slap a freeze on you could keep them waiting for a year if need be.. Again - DO NOT combine any unsecured debts to your home!!
When you eat out that one time a month, make it a cheaper restaurant, preferrably one that offers decent discount coupons or specials.
You're not really in a financial position to be eating out right now - even if it's only once a month.. That would go - if it were me..
Advertise for night babysitting-some people need third or C shift sitters and not many people offer that. Even 2nd shift if you'll be home. If you love kids, it's not a bad way to make some extra cash.
Shop for clothing at consignment shops.
Go to a church food cupboard, or a town food bank. They don't usually ask for proof of income, at least they don't here. You could cut your food budget a lot if you visited one of these three or four times a year. You'd be in good company, as it's not just for the poorest of the poor any more. I went with my friend one time and another time they delivered the food right to her house. She was so thankful.
Definitely do the above.. There was a time when my sister had to do it.. She didn't like it, but she did it because it was better than going without food.. When you're back on your feet, you can "pay it forward" by making contributions of food to whichever place you use.. That's what my sister did..
As far as the vehicles go, maybe your dh could barter his skills for a mechanics skills.
Is your DH mechanically inclined? If so, the above is a good idea too..
Good luck on everything and know that even though it feels like it's really bad, it's really not.
Try to look at it as a challenge, not as a defeat. A temporary glitch that will soon be fixed.