When you try to arrange all of them to come to your house at the same time , it takes weeks to do it and it never seems to work quite  right.  The people on my system are good at what they do but they are also connected to my system.  It keeps track of their appointments as well so when you make an appointment with several people, the system knows the  available times to each and every trades person on my site and only displays the common available times to all the ones you select, so you never have to call them all.

Granted the system isn't perfect.  Trying to get all these trades people on the same page is not easy, but once they realize the benefits of more business for them, they quickly come around.

One day when I arrived at a job (in those days the system did not inform me  of who was booked in for when)  I showed up at a job that an out of town customer as booked.  The plumber, the electrician, the roofer, the eaves guy, the painter, the plasterer, the appliance repair guy,  and me were all there at the same time.  I hadn't seen all these guys in the same place since I initialized the system.  The customer was on her  porch with here hand over her mouth, and  I asked her is something wrong?  She burst out, are you kidding Les, I thought your system really would work, yet everybody is here for when I booked them.  I never expected.  I then toiled her, I didn't expect they would all show up either, but as you can see the system really does work. 

You see most trades people have no concept of time but my latest system, reminds them of their next appointment and where it is and they can even send an email back to the customer to let them know they might be late.  Anyway  all of this takes great efforts on my part because the only person who is paying for this system is me. So one day I hope to sell the system to some big company.