I started comping earlier this year mainly using this website but gave up after a couple of months after not hearing anything. Then I found a competition on the Tesco Books Blog. All I had to do was submit a question for my fave author Andy McNab! I did so and the other day I received an email informing me that I had won and would be receiving a signed copy of McNabs latest book and a copy of the Battlefield 3 game!
I really never thought I would win anything but I was wrong. You really have to hang in there and just keep trying. After all, it is quite relaxing and fun doing daily competitions and who knows? There cold be something with your name on just around the corner!
Good Luck!