I've been carrying my work laptop/papers using a backpack I've had since school, and it's not only getting pretty dingy, it's also looking pretty unprofessional. Therefore, I'm looking to pick up a nice briefcase/messenger bag for use around the office and to home and back. It has to obviously have a laptop sleeve, and be extremely durable (I like to keep my stuff for many many years). I'd also not like to spend a lot of money.
I'm looking at LLBean because of the lifetime warranty and genuine like for their products, specifically:
but I'm willing to hear alternatives, so I call on the collectively wisdom of the community.