thanks, hachkc. and that sounds like quite the collection of bags you have!

On a normal everyday basis, my plan is to carry a laptop, a charger, a few files & writing pad, and a set of gym clothes. maybe also throw in a shaker bottle for protein shakes or some nike free gym shoes if i can fit them without over-stuffing the bag. my biggest question mark is how much it would "bulge" the bag if i threw my shoes in there (worst case scenario I could just leave them in the car)?

i can comfortably fit about 7 days of travel in my standard rollaboard carryon, but if my trip were to extend to say 10 days, then I would also like the option of using my new "laptop bag" as a personal item. have you ever tried this or had any issues with the WF passing as a personal item? any gate agents ever stare you down, or otherwise not fit under the seat comfortably?