Which websites are the best when searching for deals and coupons to buy stuff (clothes, electronics, games, appliances) online?
Besides OzBargain, RetailMeNot is also good site to get coupons.
Also,have a look at below sites to get coupons -
I'm a fan of Ozbargain too but have found many great deals on http://www.bucskscoop.com.au as well. Their blog is also full of useful tips and advice on how to find the best prices (or get the most value out of offers) in Oz.
If it's games you're after, I often start with http://www.gamescafe.com.au to get an overview of comparative pricing from various retailers. This compares both local and international merchants (those who ship to Australia at decent rates). Otherwise, I find that looking directly on either Ozbargain or Buckscoop is sufficient where somebody else has already done the leg work in price comparing gaming deals across the net.
I'd definitely recommend http://www.ozbargain.com.au/
I used to live in the UK and we have a website called HotUKDeals which is a mecca for deals and OzBargain is definitely the closest equivalent for Australia. User-submitted content, upvotes, expiry notices but as with any deals website, even cheap stuff isn't necessarily representative of value for money.
The deals aren't as good as HotUKDeals, but that's more to do with Australian retailers than the website itself.