I used to have the Roadster Screen and matching Corbin bags that I would put on for trips and such, but I've never been one to ride behind a windscreen, and the Corbins, as nice looking as they are, were too easily scratched by kid's bicycles, animals, etc..
So.. I run the fly screen, sold/traded the Corbins for Leatherlykes (thanks Sunshine!), and went the Jardine route also. The Leatherlykes aren't really stylish, but they hold a bunch of stuff, go off/on in seconds, and I can sit them around the shop or garage without worrying about them getting scratched up because they are tough!
So, now I can run naked most all the time, and when a trip comes up, or it's Winter and I need a place to throw Winter gear when I get to work, I just slap the Leatherlykes on and go..