I am starting to think we shoud just have a play-asia coupon topic. Every couple weeks I see a new topic with someone either asking for one or someone posting them up.
I know that with a topic just for the coupons, some of them could get lost in the posts, but maybe it would work if you ask people to copy the list of coupons that are still active into the end of their post when they either use one or add one. This way someone would only have to look at the last post in the topic to find out what coupons are still active. Just a thought.