I'm not real smart on math, but I like to use swing point theroy everytime I go to the store ...
If I spend $5.00 on something I don't need I have to make that up with another $5.00 on something I need, thereby having to work twice as hard to make $10.00 to purchase the item I really needed.
Helps me keep the original $5.00 in my pocket.
You know swing points ...