As a professional chimney sweep, I do everything in my power to make sure that my client’s home stays spotless throughout the service. One key thing that all chimney sweeps should consider is how often they are washing their drop cloths.
Over the years I have seen both ends of the spectrum from fellow sweeps but I personally only use them once before washing them.
It only takes one dirty drop cloth to ruin a expensive rug or permanently put a stain on carpet, especially if you have been working with a LP gas system prior.
I would recommend looking at a long-term approach and investing in a industrial washer and dryer. This investment will pay off with a steady supply of clean drop cloths for you and your clients.