1. Money
Everybody loves money, but nobody loves the germs that comes along with it! Yuck. From the Ralphs cashier to the business executive’s office to the homeless man on the street, there’s an enormous amount of bacteria on every buckaroo in your pocket. Dr. Darlington, the Health Commissioner of New York, found 135,000 bacteria from washing one bill and 126,000 from another. The way to tackle this problem is easy: wash your hands.

2. Light Switch
Somebody’s got to do it, and usually it’s the last person in the room. So pack up your things quick and get out of there because turning off the light switch in a public area is just about the nastiest task anyone can be assigned to do, besides counting rolls of money (refer to #1). All the itty bitty germs love swirling around on the plastic switch that’s touched by millions of dirty fingers over the years add up to about 217 bacteria/square inch. According to a local restroom sanitation gl

glossary, that’s what you’d call a common contact point where germs are transmitted. Clorox wipe, anyone?
3. Computer Keyboard
The computer’s your friend (except when it freezes on you in the most pivotal moments of life) but its accompanying keyboard is a nemesis thriving with germs. In a study from a British consumer group in 2009, 33 computer keyboards were randomly sampled and out of these tested four were considered a health hazard. One was even discovered to have more bacteria than your average toilet

The only way to clean (or delete) this pile of cooties is to spray the keyboard with a can of compressed air and wipe with a cloth dipped in mild detergent.
4. Cell Phones
Forget the dog. Cell phones are a modern (wo)man’s best friend. Heck, the average person probably touches, taps, or strokes their or her cell phone more times than they pet their neglected pooch at home. New research from the United Kingdom show that mobile phones are a technological petri dish for tens and thousands of germs, mainly due

to the heat that they generate as well as the bacteria it shares with your hands and face. Next time, consider an anti-microbial coating for your phone or frequent anti-bacterial wipe-downs. Or sterile rubber gloves every time you touch or use your phone, always disposing of them in a furnace immediately afterward. source http://www.informationng.com/2013/09/the-dirtiest-things-you-touch-every-day.html