I fly economy from Adelaide to Tokyo via Melbourne tomorrow, with two adult family friends. I'm QFF gold and I've got two lounge vouchers -- any advice on the best way to use them? For example, I'm flying Adelaide-Melbourne(overnight)-Tokyo Narita -- return Tokyo Haneda-Sydney-Adelaide. I figure I'd use one voucher at Melbourne International. But I wouldn't be able to use the other at Tokyo Haneda, where there's no Qantas lounge. There's also no Priority Pass at Haneda. Will I need to use the other pass at a domestic Qantas Club?