Ironic, coincidence, or  just the inevitable star crossed event – September is National Coupon Month and the month The Frugal Diva was born.   How appropriate that my birthday falls in the month for celebrating savings.  Coupon usage continues to rise and as a nation we are very interested in keeping more of our hard earned paychecks.  When economists tell us to spend more they never tell us where to get the money.  For those who are not trust fund babies, lottery winners, or living off the grid, coupons and budgeting help keep us ahead of higher prices and able to…