Communicate with your clients ****it!!

Please tell your clients "you are 2nd/3rd/next inline and it will take approximately 10/20/30 minutes before we'll get to your vehicle". Don't just give them a number to put on their car and when the lower numbered car (#8) pulls off the stand and you assume your number (#9) is next...and then you drive in but they tell you to go wait outside again because there is another vehicle before you...and you feel like an idiot for waiting for 40 minutes and then I rather drive away, because there are enough other places to have your alignment done.