To find out how often it rises over 80 or 90 Â°F each month in Honolulu, scroll down farther. There are also monthly and yearly counts of nights with warm temperatures. All the numbers are averages, based on climate data gathered from 1981 to 2010.
I shred them once the file gets full. It is handy to keep bills for at least 1 year. I do an annual review of past year's utility bills so I know how much dh and I need to budget over the year for household bills and adjust the monthly standing order payments to the joint household account accordingly.
That wouldn't be the smartest move, though. Most of the high-denomination bills that are left in circulation are in collectors' safes, and at auction the bills tend to fetch prices that far exceed their face values. For instance, a pristine $10,000 bill can command a price as high as $140,000 on the open market.