My favorite backpack has been getting a whole lot of use lately. I usually take the bus to and from my second job, so I need something easy to carry, with room for everything needed from 7am to 9pm.
To keep from being mistaken for a student, I opt for a backpack with utilitarian design and in neutral colors. Sleek enough for the office, easy enough for the bus, and stylish enough for Hot Mama. These options from Shoebuy would do just fine.