Originally Posted by
Genius1
Just to summarise - the luggage storage areas are attended in the Concorde Room, Galleries First, Galleries Club North, Galleries Club T5B and Galleries Arrivals.
The luggage storage areas (there are two) in Galleries Club South are not attended and are open to the lounge.
Thanks for the summary, and thanks to all those who responded. I'll have my laptop with me, and don't fancy leaving that laying around unattended, so the North Lounge seems like the better option for me.

Never tried the North one, so even more reason to give it a go.