He watches Ianto sorting through what to take, amused by his choice of clothes, but understanding it too. He's in his own battle dress, after all, so why shouldn't Ianto be in his. (Of course, his battle dress is also his seduction dress, his 'vaguely appropriate for quite a few periods of history' dress, and his 'standing looking enigmatic on top of tall buildings' dress, but that only makes it even more important to be wearing it.)
He's about to join Ianto at the door when he remembers the disc the wardens made him of memories of the Doctor, and he dashes back to retrieve it from its drawer, stowing it away safely in his rucksack. Then he comes to Ianto and slides and arm around his waist, taking a long last look round their home, and chuckling at Ianto's question. "Heh, quite a day that was! Nude broadcast from the beach, reunion with the love I'd thought lost forever, spectacular sex, and finishing up with getting black banded for it!"