I give myself $50 to spend on any luxuries (be it clothes, movie
tickets, magazines, food) each week (this excludes groceries &
bills, etc!). I often find that I spend way less than that cos I
usually bring in my own food to work, borrow books/mags instead of
buying. But clothes and facials are my weakness, so some weeks I do
overspend 
I have fixed deposit accounts that give pretty high rates... about
6%, so I'm happy 
As for stashing money away for retirement, no, not
yet, as our priority is to buy a house first and then start saving
for retirement. Will probably do salary-sacrifice (putting savings
into superannuation so I get taxed at a lower rate than if I was to
put money into bank acc.) as I reach my 50s.
