We travel quite a bit. Between camping, visiting family, and mini-vacations, we are on-the-go quite frequently (and we love it!). I feel like I've gotten the packing thing down to an art form (although I still have room to improve on the quantity of "stuff" it takes for our family to be away from home... another story for another day!). One of my favorite bags to bring along is what I've always called my "carry-on bag." Granted, 99% of our travels do not involve flying, but the name has stuck anyway.
I made this bag yesterday to use as my new carry-on bag for our road trips. It's about 15"x13" and is reversible.
The straps are about ¾" wide.