Hi Jarp
I'm sorry you find yourself at this point but I admire how you are handling it.
Years ago in another life that was nothing to do with an A where you are now was relevant for me.
I think everyone's advice is great but I would point out Shootingstar's post as important. Perhaps a box in the trunk of the car with essentials in case you have to leave in a hurry ? I know one girl who left when her two year old had a cold. She was upset because she left without his fever meds and he didn't have socks on. Now eventually she stopped at the store and bought these things. It really wasn't a big deal but she said she wished she had been more "ready".
Cookies and toys in the car can't hurt.
I wish you well.