I had 1 job to do yesterday, not a large job. I had to remove 1 shrub and 2 small trees and replant in another location on my customers property. I went over to his house Tuesday and went over the details as far as the transplanting goes(we didn't talk price-he is a good customer and I did a large mulch job earlier in the season for him). I jumped in my truck yesterday and headed to the store to buy the needed items(top soil,fert) for this job and went straight to the house and started working. I charged him $50/hr starting from the time I got in my truck until the job was completed. My questions is should I have started the clock when I arrived at his house?