If you have time in Singapore Airport there is a fab Fish Spa in the transit hall of term 3 right down the end - they obv do the fish eating your skin thing blurgh!!! but they also do a fab neck and shoulder massage for the equivalent of 10 worth every penney after a long flight - as per previous posts also check out the transit hotel and pool
another tip is to register your flights under their Krisflyer scheme so you start earning miles straight away - it would then make sense to use the same airline each time so you start accruing your airmiles straight away - useful in about 10 years when you finally have enough miles to fly back to the Uk but its a start!!!