Prioritizing schedule - when a number of clients want the same 2 hour time frame, how do you prioritize the client order? Dog age (pup vs mature dog); loyalty of client; physical location?

While I ask for a two hour time frame for weekly walking clients, none of them have the same time frame. I have 11:00-1:00, 11:30-1:30, 12:00-2:00, and a 1:00-3:00 currently. If you feel like you're spending too much time driving or missing out on mid-day walks due to drive time between clients, perhaps look into decreasing your radius so that you can fit more walks into your time frame. Fortunately for me, I have a couple clients who only need M, W,F, some that only need T,TH, and just one who needs M-F. When I receive a new recurring walking request, I inform them of the time frame I would have available, and if that works for them great, otherwise I apologize and archive. I wouldn't accept so many clients that you're having to turn down repeat customers.