When paying for things with cash, keep it in this categorized cash envelope. You can store any coupons and store gift cards that also fall under the categories. i.e. if you pay for groceries with cash, keep your allotted money with any coupons in the grocery tab.
"In spite of ejecting out of the envelope, the system performed well enough for me to be writing this 45 years later. I got a letter from Sir James and a nice tie. I also managed to marry a Navy nurse I met at Bethesda Naval Hospital. We have four sons and six grandsons today thanks to that seat". George Wright