The public transport of Victoria provides a reloadable ticketing system through smart card called Myki. The Myki card is your ticket to travel on Melbourne’s train, trams and buses.
The reusable card is easy to use, simply top up before your journey and then touch on and touch off at a myki reader as you travel.
Myki Money: suitable for occasional users top up your myki by paying as you go.
Myki Pass: suitable for frequent users top up your myki with consecutive days of travel.
Unlimited Monthly Fare (30 days) $138.60 AUD
Unlimited weekly fare $37.60 AUD
Cost per day $7.52 AUD
For more information: http://ptv.vic.gov.au/tickets/myki/)
Best choice for short distances is a Bicycle. You can get a used bicycle via www.gumtree.com.au
Remember to use helmet all the time for your protection and to comply the safety regulation.