The best idea is to agree with a reliable supplier. Then you will get quality products for a better price. We don't recommend cutting expenses, purchasing low-quality materials, etc., because you will prolong the cleaning time.
Another way of minimizing regular expenses is hiring fewer people, but they have to be professionals. Sometimes, business owners hire a few cleaners and then more staff. It is a good idea for those who would like to try cleaning business. If you are still unsure whether it will work out, hire 1-2 cleaners and then escalate a business.