The most practical style in your arsenal should be a roomy tote. The open-top shape comes in handy more than you'd think, from tagging along to the office every now and then to doubling as the smartest carry-on ever. Avoid prints or bold colors in favor of a neutral, and you'll have found a style that'll just keep getting better with use. Banana Republic's navy and white Ashbury colorblock tote ($130) is one of our favorites.
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