[jyl]

I use a Tumi shoulder bag, carry-on size.

For short trips (2-3 days) it is only half full and can always fit in the overhead, even if the overhead is "full" I can put the bag in front of the rollerbags and close the door. For those trips the bag is light, and easy to carry for a long time, my computer briefcase weighs more.

For trips of a week, the shoulder bag is full and needs a regular spot in the overhead, it is still okay to carry walking through the airport or for several blocks, not effortless but I figure I can use the exercise.

I guess they don't make ths model anymore, but there are plenty of similar bags.