I got a relatively cheap bag at Staples. Lots of pockets (inside and out), padded area for the laptop, and a "folder" area for paperwork, etc. Big enough to carry all I need yet fits underneath a seat if need be for commuting. And it's way lighter than an old school bag, just no place for stickers. I am really happy with it and have seen lots of others with similar bags.

Nice to hear I won't need an old school bag once I get plucked from the pool .