Best of Boston

Never mind our underutilized brains: Experts say most of us tap only 10 percent of the capability of the whiz-bang high-def TVs, sound systems, and talking refrigerators we use to decorate our homes. Tweeter’s solution is its adult-playground stores—there’s just one in New England—where the latest technology is set up in replica kitchens, dens, and bedrooms. The chain’s hyperinformed tech-heads walk buyers from room to pretend room, demonstrating features meant to keep them entertained in space-age style.