Work with people who share your values. The attitudes and actions of those around you directly affect the quality of your life and the success of your business. Therefore, work with and around people who model honesty, hard work, optimism, and a generous spirit. Avoid those who don’t. EOB, from Builder Notes
There is no such thing as a perfect job or a perfectly satisfied customer. The world is not a perfect place. Therefore, strive to provide excellent quality and service—to exceed expectations—while leaving perfection to others.
Do not give away your pre-construction products to potential customers. This includes estimate line item details, specifications, material take-offs, subs and suppliers, schedules, and ideas. Some people are educating themselves at your expense and will use as much of your time and all of the information you give them without ever using you. Design your sales process so that clients sign a contract before receiving this information.
 A friend tells of a time he designed and drew an addition for a potential client, only finding out that he was not getting the work as he drove by the home and saw the addition being built using the plans and specs he had provided for free.
Use professionals as advisors and to solve specific problems in specialized areas. Setting up a computer or an accounting system or developing a safety program are good examples of areas where professionals can help develop and improve your business. They are generally far too expensive for day-to-day tasks.
Addendum (Addenda) is a supplement, revision, or clarification to the construction documents developed and published by the designer or engineer. Addenda are issued during the bidding process or when the job is underway. They are distinguished from change orders in that they do not refer to time or cost and clients do not generally sign off on them. Addenda issued during the bidding process must be read carefully by each bidder because they provide answers to questions put to the designer by every contractor bidding on that job.
Keep accounting services in-house if you can. There are companies that offer those services—from individual accounting components to the entire process—but there is significant benefit to having most, if not all, of your accounting done in-house. Our CPA of many years said that, among his clients, those who did in-house accounting were the most profitable because they learned what the numbers meant and how to use them to lower overhead and production costs. Further, you care more about the result than an outside company does and, therefore, the information will be more accurate and more useful.
There is nothing more fundamental in business than profit. Before you do anything else, learn what it is and how to charge for it and add it to every project. If a business is not making adequate profit, the owner is working for wages and would be better off taking a job with someone else and giving up the responsibility and the risk of being in business. EOB, Rules, Ethics, & Opinions