I am planning the multiple trips I have coming up so this big carryall weekend bag from Jimmy Choo is of particular interest to me. I know I said canvas/linen is practical for being lightweight but sometimes you just want to look good at any cost (even to you back, shoulders and hands). But this is actually patent fabric so it is much lighter than patent leather but you get the same fabulous look. For a quick getaway to say, Las Vegas, how incredibly amazing would this be? I mean, anything you bring to Vegas is going to be small anyways so this will be all you need. I was thinking that this would even be good for the gym on those few occassions I actually shower there (I go to a nice gym and I still worry about germie shower floors, always bring flip flops!!). It comes with a shoulder bag that will be handy when traveling. At Net a Porter for $1075.
You could try the Longchamp Pliage duffle bag. They're only a few hundred dollars, and really light