Keep your work materials organized and professional at your desk or on the go with this selection of portfolios from Overstock.com. Choose a solid oak desk set to stash contracts and outlines within plain sight while adding a classic aesthetic to your office. For frequent traveling, a zip-around portfolio gives you the freedom to access your papers on the morning train commute or while flying to the next big meeting. Nylon portfolios are heavy duty to withstand frequent use, while leather portfolios are sleek and classic looking to complement your formal business attire. If technology is a big part of your day to day operations, choose a portfolio with an iPad pocket to keep your tablet within a moment's reach, or pick a model with a business card holder to facilitate networking.