I just did my first tour earlier this month and I had hand gel, anti-bac wipes to wipe surfaces and anti-bac spray to use on bedding etc after each client. If it's not something you already require you can make it that everyone has to have showers. I didn't make it a requirement for everyone as a few of my bookings were just breast relief and cob so reduced the amount of towels being used, however anyone not having a shower did have to thoroughly wash their hands. Apart from that I didn't do anything different from what I would normally do apart from request deposits which I dont really do for tours.