Extra Cash/wage-mortgage%

[XYGTHO]

G'day. Just heard today that the average percentage of people's wage that go's into house repayments is upto 37.5%. This is a middle figure and i know everyone that had bought in the last few years would probably love this percentage.
My repayments are 52% of my wage and it's only a 200g loan for a little house.
Now i'm looking at ways to get a little extra cash. Get some money to put away for the car etc. Have been looking at jobs that i can do nights and or weekends but can't find a whole lot. I used to maintain, service and clean trucks weekends but not much of that available either.
I am a draftsman so could maybe get some contract drafting?

Curious into what percentage peoples repayments are, how they are travelling with it and coping and also:
what people are doing or idea's for some etra income. Anyone in the reserves? I have been looking into this but it's bot in my area.

Cheers.