Old Navy Slim-Fit Chambray Shirt
Credit: Photograph by Michael Pirrocco

Here's a pro-tip for guys who want to build an extensive work wardrobe without paying through the nose: Old Navy's got you covered. Most Old Navy button-downs look as good as anything you'll find at Gap and Banana Republic and they'll only set you back $30. Two tricks to success at Old Navy: Go a size down and avoid the plaids. Otherwise, anything goes, and we're particular fans of their Chambray Shirts, which look good in any season, have a pleasing depth of color, and outlast some of the brand's less durable offerings. The New Blue, New Black, and Red are particularly nice. [$29.94; oldnavy.gap.com]