Hello and welcome!
Some things that might be useful:
- We have Craigslist, but Gumtree is far far more popular.
- Aldi is your friend as far as food goes (Coles and Woolies are fine too if you get stuff on special), or the fresh markets that are scattered around the city/suburbs (which one in particular depends on where in Melbourne you live).
- The inner suburbs are largely pretty good for riding bikes. At least when it isn't raining.
- Remember to touch on and touch off your myki (except in the free tram zone), although you don't need to touch off on trams :)
- Wine is far cheaper than beer at a bottleshop.
- Yes, housing is expensive.
- Chances are you'll get asked what footy team you barrack for pretty soon. :)
- Four seasons, one day. Not so much now, but the weather in spring and summer can be pretty erratic. The cool changes that come after a few hot days in summer are refreshing but fairly sudden, it can drop from 40C to 20C (and windy) in a matter of minutes.
- It's generally a very bad idea to camp under gum trees. The things have a habit of dropping branches, especially after the above cool changes.
- No-one here drinks Starbucks.
I'm sure there's plenty more that others can add, there's a few of us around.