Just to add to what some others have touched on I think the GPS is a great idea. If you have 4-6 guys in a crew per truck you are paying upwards of $50 per hour in wages to them. That is just wages and does not include gas, potential revenue, etc. If whatever they do during the day amounts to an hour of wasted time you are wasting $250 per week in wages or $1000 per month due to them screwing around. I don't think my employees would do anything deliberately dishonest but if they knew they were being tracked they would be more efficient and hustle while doing things. It would also be great to know where they are and to be able to let your customers know.