Copago, I had blue-tongue lizards in my yard. Two different species, judging from their eye markings. Maybe they sought refuge from surrounding properties being "developed". Mine is one of the diminishing number of houses still with trees, grass and leaf litter. I haven't seen them lately - maybe the chooks have driven them away.
We spotted this little feller basking in the sun as we walked in The Grampians.
Could be a skink, but I'm not really sure.