Cash goes where???

Do you ever wonder where you cash goes? Of course you have. Does it just disappear like the sock in the dryer thing??? Never to be found again?

I try to make myself stick to writing it down. I take that $60.00 out of the ATM thinking I am going to get some gas, pick up a few things at the market, and have some cash in my purse. You know so the next time my granddaughter asks me for a buck I actually have one to give her!!
But somehow it just disappears. And I didn't write down where it went. Now what???
Okay so I vow to do better next time.

Will I ever learn?