I scheduled a guy to come and clean our carpets. It hadn't been done...ever since we moved into this house, so we were way past due.
He spent about four hours running his machine. The machine was pretty noisy (and he said that he even had a muffler on it to reduce the sound!) I was grateful when quiet descended again and the carpets were clean. I was even more grateful that I did not have to clean the carpets myself!