I find that my clients take advantage of my schedule. One client insisted on an early drop off at 6:30 am when we had agreed to 7:00 am. I wake up early and prepare for client and then at 7:00 am they text that they are running late and will be there at 7:30!! It would be ok if this was once in a while but it seems to happen a lot with multiple clients. Do you guys have any suggestion on how to express how important it is to be on time up front?