In reply to nickinscottishmountains:
> ME holdall and use separate sealing bags inside it?!
That is one option but it's nice to be able to rummage in open compartments rather than in sealed storage.
I do already have a holdall with five or six compartments and some packing cubes for when I'm feeling really OCD, ie most of the time, but it is a big rigid unit with wheels etc and not so easy to squeeze into the boot along with all my other kit, axes, pro, boots etc. It's bloody brilliant in every other respect and the wheels are very handy at times too, especially in airports. I was just hoping to find something similar for car trips.