If you are hoping to win prizes on a regular basis don't completely abandon the car and holiday competitions, as long as your entry is in you have a chance, but make sure you look out for some other comps too. I've had the most luck with competitions offering DVD's, movie tickets and kids toys. I guess this is because winning these smaller items doesn't appeal to as many people as what winning car or holiday does. Also, being less expensive companies will offer several prizes when giving away movie tickets or DVD's but there's usually only one winner when a car is the major prize and you're competing against a lot more entrants. So it's pretty simple: less expensive prize ---> more prizes awarded + less entrants = greater chance of winning!
If you're not aware of the site already, I highly recommend visiting www.win-free-stuff.com.au. If there's a great competition currently running, chances are it's listed here. Plus you can log in and check off comps you're not interested in and ones you have already entered so you don't accidentally enter twice (because we all know that can sometimes get you disqualified - wouldn't want that!). Plus all comps are categorised so if you're chasing something specific - like that shiny new car - you can find it straight away without having to sift through everything else. But if you're like me, you'll do some sifting!
So has anyone won anything lately? What's the best prize you have ever won?