To those getting excited by that 888 offer, there are literally £1000s of such deals every month that you can exploit, absolutely risk free, using 'matched betting'. Google it, spend a few hours reading about it and you'll literally make enough to pay for your summer holidays in a few days messing about on your laptop.
It's strictly once per person though, but if your parents/grandparents/etc have a different address then you can do it for them as well. Money for absolutely nothing, everyone should do it!