Great game! It was easy to understand. The idea of not mixing clothes is fantastic, and it's visually appealing with sound effects. The soap-buying mechanic is a bit unnecessary, since the money isn't used for anything else; I can just spam the click button to avoid worrying about running out of soap. But I understand you wanted to include that mechanic.
Overall, it's a good game. You kept it simple and entertaining, while also making it challenging for the player.
What I liked most was the ability to mix clothes from different orders and wash them together!