For its first several years of business, when my remodeling company did only one job at a time, I was able to keep all relevant business data in my head. I could remember which materials had been ordered and which hadn't. And when an invoice came in from a sub or supplier, I immediately knew if the amount was right or wrong.

But about six years ago we started doing multiple projects, and it wasn't long before there were more details than I could personally keep track of. At that time, I still placed the material orders for all jobs. If a crew ran short of materials, I'd run out and buy the missing item so everyone could keep working. But when it got to the point...

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