From the first time someone copied a file to a diskette, people have recognized the importance and value of sharing computer files among users and their computers. It wasn't long before a handful of enterprising companies began developing hardware and software that enabled personal computers to be linked together, or networked.

You never know what lies behind the walls of an existing home. Every remodeling project is unique. Renovating an existing home is much harder than building a new home. Finding a skilled remodeling carpenter is harder than finding that needle in the haystack. These are some of the proverbs of the industry, but they can also be used as excuses.

Just when you think you can spot a lemon of a remodeling job, along comes a lemon that turns into lemonade. The project that Gehman Custom Remodeling completed for David and Terri Wyher this summer is a thirst-quenching case in point. At first the project looked straightforward enough — exterior repairs and a few other things.

Seminars, classes, conferences, peer groups — indeed, even remodeling publications — devote themselves to teaching the importance of understanding overhead and net profit, margin and markup. As a whole, the industry doesn't charge enough to make the margin required to cover overhead, pay the owner a good salary, invest back into the business and provide a retirement plan.

Ask around. Tradespeople will always know if the crew before them did a good job.

"Wow!" That's all Rick Montelongo, CGR, president of Montelongo Homes & Remodeling, could say when he first saw this 1950s, 1,200-square-foot brick home. Nestled between mature oaks on a prime lot in the coveted, historic Olmos Park area, the house had been left to decline: Broken windows, a dilapidated brick façade and small, confining rooms.

When the owners of this suburban Boston home — both natives of Florida — looked to build a kitchen addition, they elected to do it in 2002, which proved to be the coldest winter Massachusetts had seen since 1950. But this climate challenge didn't stop Mitchell Construction.

A client more concerned about finish details than the budget? For some remodelers, that might be a nightmare. But if your focus is architectural integrity, it's a dream come true. These homeowners could only use their existing screened porch in nice weather, and their deck needed an upgrade. They wanted to replace both with something punchy, something unusual.

Find and Use a Good Lawyer "In today's climate, it is extremely important to have relationships with professionals in place before you need their services," says Paul Winans, CR, president of Winans Construction Inc. in Oakland, Calif. "You don't want to have a problem with a client that forces you to meet a lawyer for the first time.