If you read Head for Points on Saturday, you will know that one of our readers has won 1 million Clubcard points in an Amex competition. A few other people shared their experiences of winning things via HfP in the comments.
This competition on the Business Traveller website is worth a look, because it will not attract a huge number of entries. The prize is a return flight in Business Class on South African Airways to Johannesburg.
SAA business class seating is a lot better than you might expect, as you can see here, with fully flat beds.
You can fly up to the end of February 2015. If you won and wanted to visit Cape Town, remember that you can redeem Avios points for the Comair-operated flights from Johannesburg to Cape Town.