As part of the “Biz on Biz” series—where local business owners give us tips about favorite products or services at other businesses—we stopped by Zumbach’s Gourmet Coffee on Pine Street. Owner Doug Zumbach’s spotlighted design solutions for “unique and different” Christmas gifts, elm for the popular restaurant’s selection of pasta dishes and Family Britches for its menswear. “Family Britches is a great store, with a nice owner, ” said Zumbach, who opened his eponymous coffee shop in 1992 and offers 30 varieties of hand-roasted brews. “I’m a big fan of Canali suits. They have a really nice line and selection of those there.