OP here (oh, I'm a she...w/a migraine right now, so will ask more ?s later)

But, I have a big one right now..

We always fly with only carry-ons...rollerboards plus small bag of "entertainment stuff"...i.e. laptops, ipads/ipods, nintendos, etc.

I've read that Air Asia only allows 7kg carry-on, then you pay for checked. Ok, but if I pay for 15 kg (something like B300+), is that all that is allowed for everyone, or can I pay for 15 kg per person at check out (total B1800+).

Thanks...I've found some flights at US $10 pp one way!!!