My income is about $48/k and our family has been spending about $1300/mo (though my newest rent is higher, so will have to see how things play out), two people (one adult, one teen).
I do most of the normal frugal things (don't really buy clothes, don't eat out unless it's cheaper than eating at home, etc). But I also have a car, etc, and a pretty luxurious life overall.
My biggest hack is housing costs. I haven't paid normal housing costs in a looooooong time, and will take pretty strong measures to avoid them. That one piece would make or break things for me.
My whole schtick is laid out in detail in my book, link in my sig :)