The Jet Roller bag from STM Bags has a large compartment for packing your clothes for a 1-3 day trip, just as you’d expect from luggage. The unexpected is that the Jet Roller can also act as your laptop bag. The front of the bag has room for your computer (up to 17″) in the padded compartment. The front panel unzips to reveal storage for cables, chargers, even a tablet. The outermost compartment has room for your keys, some pens, and a ticket. There’s a back slip-in pocket for files or a magazine. It has an extendable handle and smooth rolling wheels to save your back and two padded grab handles to help you stow it in the overhead compartment. STM says the bag is 22 x 12.6 x 13.4 in, so you should compare the dimensions of this bag to the maximum carry-on size allowed by the airline you most frequently travel. The bag sells for about $180; check the STM Bags site for authorized online dealers.