Regarding the bag, I just use a $100 Costco bag that works great. Fits in all the overheads, expands if necessary and I haven't had a problem on any but the smallest rjs. I've seen other folks who also use Samsonite spinners that they got for a $100 or so. It pays to have a light bag and there's a lifetime replacement warranty so I walk into Costco and they give me a new one instead of sending it off for repair. Also I'm a year in without a personal headset and I just carry a lot of disinfecting wipes which I would do anyway.