Most of the time I wear a German milsurp canvas backpack in lieu of a briefcase. Sometimes I'll carry around an Austrian milsurp leather mapcase if all I need on me is my cell, wallet, iPod, headphone amp, IEMs, and something to read. When more grace is required, it's an Eddie Bauer bag I bought in 1998 that is a similar brown/olive canvas color as the current Dunhill Motorities line, with indifferent-quality brown leather trim and antiqued brass hardware. It's a great bag for the $70 or so I paid, For formal situations, I carry a brown leather brief that my grandparents bought for an uncle who died before his time. It's made by a company called Gavi Pell according to the tags found inside of it, though the only marque on the bag itself is a brass plaque with the name of the store from whence it came (Harrod's) in their signature font on the inner back. It is highly derivative of the venerable Hermes brief in terms of design, but slightly deeper. It can barely fit a MacBook Pro in a thin sleeve in the middle pocket.