Okay, here's one from outside the box. If you end up getting the basics down pretty well and you want to put your supply house over the top to take all your competion's customers, put a deli in there too. I'm serious. Have soups & sandwiches maybe drinks and coffee and donoughts. Don't want to spread youself to thin? Sub it out. Lease a small space and set it up as a seperate counter.

Now you'll have the lunch rush. Guys that would normally put off running to the supply house for a small part won't put it off if they can grab it at lunch. And as long as they're there, they'll grab something else too. Then make sure you're moring shift and evening shifts overlap at lunch time so you have twice the personell on hand.

Even if you don't go with the deli idea, try to figure out a way to have some extra counter help at luch time. Guys will always shoot over because they're out anyway for lunch. Nothing worse than standing in line because there is a lunch ruch and half the help is out to lunch.