Ever try to cram your laptop, running shoes, and gym clothes in a briefcase? Good luck. "The gadgets and gear we now lug around call for much more functionality -- and a way to separate it all," says New York-based fashion consultant Warren Christopher. These versatile men's and women's carryalls are perfect for visiting a client, sending e-mails from Starbucks, or hanging out at the gym. Jack Spade's Gym Bag includes a matching waterproof sack for dirty gym clothes; Swiss Army's Web Messenger Bag has a separate laptop carrier for all-work-no-play days. Literally the most unique of the lot is Timbuk2's you-design-it bag. Enter Timbuk2's website and follow the custom building process to select size, fabric, and color, as well as the number and type of your bag's compartments -- the latter keeps sweaty togs from commingling with tonight's reading material.

RLX Messenger Bag, $80 [866-897-7656]
Jack Spade Gym Bag in drill nylon, $275 []
Ladies' Adidas Focus Tote, $30 []
Swiss Army Web Messenger Bag, $185 []
Timbuk2 Messenger Tote, $137 []
Tumi Cortlandt 20" Sport Duffle, $150 []
H&M Messenger Bag, $15 []
Samsonite Jolt Bag, $40 []

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