Mile accrual and redemption is extremely lucrative - it allows you to travel in a premium cabin (e.g. Business and First Class) for free (well, you still have to pay for taxes) - check out my experience on-board the Suites Class in Singapore Airlines. One of the best ways to start raking up these miles is to make small changes to your spending habits each day and if you enjoy eating out, traveling or simply enjoying the finer things in life, Mileslife can help get you on-board a First Class seat a lot faster.