They never share supplies, and all items are meticulously cleaned by teachers after each use.

CNN: Giving a childhood to young cancer patients

Six thousand sturdy, blue three-gear bikes will be locked up after each use at 330 locations in Manhattan and Brooklyn.

WSJ: NYC holds bike-share program demonstration

The CDC, the Centers for Disease Control and Prevention, recommend that you wipe down equipment after each use and perhaps, you want to use a barrier like a towel to sit on equipment.

NPR: Tracking a New Strain of Drug-Resistant Staph

After each shot, competitors use a telescope to check the position and value of their shot.

BBC: HOW FULL BORE EVENTS UNFOLD

Each board of directors decides the best use of earnings after assessing the potential gains from investment and stock buyback programs.

FORBES: A Second Look at P/E Ratios

We create an image of the hard drive using PowerQuest's Drive Image software and use the image to restore the system to its original state after each test.

CNN: Top 5 CD-rewritable drives

Use a singular verb form after nobody, someone, everybody, neither, everyone, each and either.

FORBES: Magazine Article

Two lithium-ion batteries power the device (four are included), each of which will go for three to six hours after charging for an hour or so, allowing continuous use of the suit by facilities.

ENGADGET

You get half a year's use out of each set of tyres so they last twice as long in total, but after the fourth year their material will be inferior compared to new, even if the car was not driven much.

BBC: Your tips for coping in a colder UK climate

In Holland, many casinos use continuous shuffling machines (CSM), so that dealt cards are shuffled back into the deck after each hand, in order to fend off card counting.

BBC: Casino design and why the house always wins