Be easy to work with. Keep a positive attitude and be polite and you'll do great
There was one time I forgot to have my client weight and take his blood pressure and sugars and write it down first thing in the morning before he'd eaten anything.
I had been cleaning for a couple,gone to their home for several weeks in a row. Then one day I showed up to work and I guess my boss had told them it wasn't worth having them as a client because they were to far away and she had forgotten to tell me. The client was a little angry but after we talked for a sec and she was ok