If you are near a 24-hour Walmart or supermarket, go in and ask to purchase rolls of change or stacks of dollar bills from them. Worth a try to save you a trip in the morning.

Good luck.

You could move the yard sale a few days later, or ask close family to swap.

opps.... replace stuff so all of it $1

I'm having a yard sale tomorrow and I stupidly forgot all about the fact that I would need change. It's nearly 12 am, and considering that my banks closed tomorrow I'm not really sure what to do. I'll go to the store in the morning and see what I can get but from what I've read you run out of change pretty fast at yard sales. Any other ideas?