Cassidy and Rachael decided this morning that they needed to start a business and make some money. They talked about a few business plans, including a fly-catching business (which would have integrated with their other operations very well, since Cassidy caught a spider this morning and needs to feed it) and selling cookies.
They decided on a lemonade stand. Then they made some lemonade, set the price (50 cents), made a sign, hired Delaney to help (in exchange for free lemonade) and set up shop. They have already expanded into rock sales ($1 each).