Some people carry change purse with them where ever they go, but you won t use most of those coins. Why carry coins that you won t use? So what is the fewest number of coins you can carry that allows you to produce any exact change? And then find an inexpensive way to carry that in your wallet.
Step 1: Theory
So what is the fewest number of coins you can carry that allows you to produce any exact change?The answer is 10 coins, 3 Quarters, 1 dime, 2 nickel, and 4 pennies. With this combination you can produce any number between 1-99 cents.
An alternative answer would be 6 coins, 3 Quarters, 2 dimes and 1 nickel. In this example you will range most change between 5-95 cents, in 5 cents increments. In this example you will never receive more than 4 cents in change back.
The project is a way to carry these 10 coins easily inside your wallet. I have used a thin piece of cardboard. But if you may use most anything, I recommend any material about 2 stacked coins thick, and have enough friction to hold the coins in place.
Step 2: Materials:
a Credit Card to draw template
30 minuets to an hour of free time
Step 3: Draw and cut
First get the cardboard, use a credit card and your pen to draw a template.
Step 4: Draw your coins
Place coins on template. Use pen to trace your coins. Put them generally where I have them place. Now when your tracing remember the cardboard must support itself when you cut the coins out. So don t have coins touching and leave a fair amount of room between them. Remember you will be staking the coins 2 per slot.