Very important. Some families want you to bring your own supplies and equipment.
It's a delicate balance. Is it worth it, not the money, but the micro managing.
Do a background check and check out their references.
Yes, they should tell you.
I think a air purifier is usually all that is needed.
Yes, I think it does count. The children you baby sit for should be given the love and attention you would give your own children.
Someone who will listen and talk to the children. Too learn their personalities and what they like to do.
If you need time off. It is better to do it in writing. Or if you have already covered this with your employer, give plenty of notice.