Dry out your house
Once the weather is dry enough hose out any mud, dirt, and debris and then open all your door and windows. If it's still wet outside, leave doors and windows ajar. If your electricity or gas is still working turn on your heaters, but monitor the heat level. You want the heaters to help get rid of the moisture, not warp your floors and walls. Don't worry about mould until everything is dry.
Beware of your surroundings
Watch out for snakes, spiders and any other animals that could prove a hazard. If an animal has taken up residence in your home in your absence, call your local wildlife rescue to come and safely relocate it.
Check electrical equipment
Thoroughly dry out any electrical items and have them checked by an electrician before attempting to use them again, as water damage might not be immediately apparent.
Determine what is salvageable
Divide things into piles to keep and throw away. If the flooding and damage were widespread, it might be best to get a skip for larger items and garbage bags for smaller items as you work your way through the house. Heavy furniture like beds, mattresses and couches may also need to be removed if they cannot be saved.
Think about security
Your house may not be liveable for some time. In this case, it's advisable to notify your utilities of the situation and arrange with Australian Post to have your mail held or diverted. If your property can't be secured due to the destruction of locks, consider arranging for a temporary security measure (i.e. cyclone fencing) to be installed as a deterrent.
Look out for mud
Mud can seep into all the nooks and crannies in your home during a flood, lingering in spaces you wouldn't even think to check. Look out for mud in small spaces like behind and under benches, in shelving, and under showers and baths.
Check walls and floors
Floors, insulation and plaster may need to be removed as damp spaces can lead to the spread of mould and mildew in your home. It only takes mould about 24 hours to develop and start spreading, so your focus should be removing wet items and drying out your house as soon as possible.
If it’s all too much and it’s something you can afford, there are lots of cleaners around who specialise in post-disaster cleans that you can call in to help.