Affordable childcare options in Louisville - what worked for you?

I have 18 kids and I need to interview and work without a sitter. There are 18 people counting on me, so I am trying to be careful. I am willing to trade favours. Is there an emergency option?

Libraries and community centres run free activities that gave me a couple of hours.

Thanks for writing this out. I went through something close to it 7 months ago, and it got easier once I kept a simple log of every call and form.