In reply to Kimono:
> Shame really as i suspect that 100 grand would actually make you happier than 100 million
Top prize is £1 million, isn't it? That would definitely make me happier than £100,000, though either would be very nice indeed!
I keep £1000-2000 in premium bonds as a holiday fund. I was very lucky and won £500 the first month I bought any (£200), many years ago; since then I think I've won £100 and £50. I rarely win anything, of course.
It's fairly harmless fun, low risk, and easy enough to access your savings, so it's not a bad way of saving a small amount.