Ah yes, the key-card activation system, which = blundering around the assigned room until the penny drops (or the key-card!) My trick is to get TWO key-cards (well it helps if my wife's along too
) you then LEAVE one card in the SLOT, AT ALL TIMES, and that means (of course) that your aircon, lights etc, can be left on for the rest of your stay!! However, the disadvantage is that the whole green design is thwarted
Thanks for the report Kevincm.