The business has three freezers. Working in those areas for just a few minutes will quickly cool one down.

"You get to work in temperatures that's about 34 degrees, and if you get in the freezer, it's way more than a shocker. You'll be in there it will be 10 below zero, so you don't stay in there too long even when it's hot like this," said owner Ray Moles.

The purpose for the cold working conditions is to keep the meats from spoiling. Ice cream stores also have cold temperatures to keep their product from melting, leaving employees to find excuses to head to the freezer when it's hot outside.

"If you need a five-second spot away from the customers where it's blazing hot outside, you walk back into the walk-in freezer," said Garrett Hughes, an employee with Ellen's Homeade Ice Cream.

Turn out the lights. Lighting eats up 44% of electricity used in office buildings. We'd collectively save enormous amounts by turning out all those little desk lamps and overheads. If you sit near a window, rely on natural light.

Don't flush. No, for the love of Pete, flush--just don't use more water than you need to. Like, don't leave the water running in the sink as you chat with your colleagues about America's Got Talent. Urge your boss to install low-flow toilets.

Stop wasting office supplies. Seriously. What's the point of having a job if you can't plaster your wall with Post-Its, you ask? Think of it this way: it's not about denying your access to free stationery; it's about not being responsible for the felling of 1,000 trees. Turn your greed into guilt.

Turn off the computer. I know, I used to do it too: leave the computer running during mid-day Pilates class so the boss thinks you're still toiling away through lunch. Computers are energy monsters. Just by setting your computer to power down automatically after 15 minutes of non-use, you cut the machine's energy use by 70%. Seventy percent! That's worth a hairy eyeball from the boss, no?

Bike to work. Or take the bus. Or train. Just get out of the car.

News photographs don't have to be technically accomplished. They sell on their captions. But many professionals make their money from photographs that are no longer news - the stock images sold by picture libraries. This is the market that the web will devastate. It is already damaging it: when I went round to see my friend, he was looking at a pile of 4,500 stock transparencies returned to him by a well-respected agency that had just gone bankrupt.

A picture-sharing site like Flickr contains the work of tens of thousands of talented amateurs, all of them capable of producing one or two photographs a year that could be published anywhere. A British photographers' site, EPUK, has calculated that if only 1% of the pictures on Flickr are publishable, that would mean 1.5m usable pictures uploaded there every year. Most of the drudgery of identifying good, relevant pictures is also done here - by the photographers themselves, who tag them, and by the other users, who notice them and have their interest recorded by the software.

Perhaps none of these people could make a living as a photographer, but few want to. Any money they make is gravy for them - and bread taken from the mouths of professionals.