One thing I like about SIA is that whenever I fly to US, I can loot 32kg x 2 stuff back. Recently I received a memo from them, for US trip the weight allowance has reduced from 32kg (70lbs) to 23kg (50lbs). Any excess baggage will be charged.
More info about this here.
I guess the recent change is due to oil price hike. I heard that it takes more fuel to carry more heavy baggage. AirAsia took the excuse of saving the environment and encourage passenger to travel light. AirAsia is also charging extra for baggage. However how can I resist the temptation of buying stuff from US? Oh well, spend less and save more for me.
not just SIA, I believe most airlines will follow suit. EVA Air is also allowing only 2x50lb luggages now for check in.