I use this sort of neoprene carry case, which has a zippered side compartment. Mine does not have handles, these things exist in many variations.

I only put cables and thin accessories in the adjacent pocket, as I do not want the contents to damage the screen if the kit gets pressed upon.

Perhaps a second soft case could hold the bulky accessories such as the keyboard.



I do carry a very thin USB charger in the pocket, but apparently these are no longer sold.