Hi all.. I've recently picked up at beautiful fantastic keepall 55 with shoulder strap. I love it. I wanna keep it forever. I find, however, that it's way too big to swing around everyday like a "man bag". I'm considering breaking down and buying a keepall 45 because of its practical, manageable size (and I love the shape). I like the idea of the shoulder strap on both bags. I'm afraid that when I travel and carry both bags, It will look silly to have matching (shoulder strapped) keepalls in two different sizes. Should I consider getting the 45 without the strap so that they look a little different?