Carry Exact Change

Here is a post I saw on lifehacker about carrying the right amount of change.  If you hate carrying a ton of change but want to always have the right amount of change to cover from $0.01 to $0.99, the minimum number of coins to carry is ten (10).  Here is the combination:

1.  3 quarters
2.  1 dimes
3.  2 nickels
4.  4 pennies

Each time you leave the house, carry those coins.  Of course, after one iteration of creating change, you'll need to create the combination again so maybe you could create little sets of 10 coins and always have them available.