Make your Wants Few
When I read this, I had never heard of it before... but yet, I live it.
My husband always makes fun of what I "want" for Christmas or my Birthday. I quote "Those are not wants... those are needs".
I grew up this way... if I really wanted something... it was more because I needed it. By making my "wants few"... as a single adult, I was able afford college while working WITHOUT taking out a loan.
Distinguishing between our WANTS and NEEDS is a major step in budget management.