I know it's a little banky, but I was quite taken with the idea behind this piece (above) in Hosier Lane. It's probably worth pondering, at least, and seeing what changes you could make.
Other pieces worth looking at:
Someone had fun with the Van Gogh exhibition that's currently on at the NGV (that we'd just attended - we've been seeing Van Gogh everywhere since!).
All in our stroll back to the car after a sensational lunch at Lucy Lui - if you haven't tried their Lucy Express (set lunch of 4 dishes and a glass of wine for $28.50, Mon - Fri), book yourself in.
Just walking the streets of Melbourne makes me love life!