In the USA a couple of years ago, there was a cult hobby amongst mileage enthusiasts – buying $1 coins in bulk from the US Mint and depositing them into your bank account! Due to free shipping deals, it was a great way to earn miles on your credit card. As long, of course, as you didn’t mind taking literally thousands of $1 coins down to your local bank.
(The deal finally died, but not before making the press.)
You can now play this game on a small scale in the UK!
The Royal Mint appears to be stuck with a pile of commemorative 50p coins from the Olympic Games! Over on its website, it is offering 50p commemorative coins for, erm, 50p. The miles or points you earn on your credit spend are therefore free.
Using code OLAFPP gets you free postage as well when you spend £10! (EDIT: code now dead)
There is a limit of 4 per coin per address, so you can’t spend much more than £50 this way on your credit card (there are 28 different coins I think). But, let’s be honest, aren’t you secretly grateful that you don’t have the temptation to buy £5,000-worth and deposit them in your bank?!