My boyfriend and I, between the two of us, make around $6000 pesos a month. Haven't really saved a dime in 2 years of living together, something always comes up that wipes out anything we had managed to save (fridge breaks, dog gets sick, etc). Our breakdown is:
$2500 rent + expensas
$500 bills (cable/internet, ABL, etc)
$1000 groceries
$600 for my health insurance (his is covered)
$500 dog food
That leaves about $1000 to, you know, enjoy life. Maybe dinner and a movie ($200) once a month. Suffice it to say....we don't go out much.