By toiletries, do you mean stuff people use to remove make up, toothpaste, etc?? Why would a cleaning company provide that? Maybe I just dont understand. In my mind, as house cleaner would NEVER provide this sort of thing. That is the customer's problem, as they probably have preferences that you cannot know about.
Now, if by toiletries, you mean cleaning products, that is another personal decision. I prefer to bring all my own supplies, because I KNOW they work. If a customer demands I use their stuff, I do, unless it is something harmful to me or them.