In Matt's hand was a clear plastic bag holding his Ruth jersey.

WSJ: The Kid Who Skated to Yankee Stadium �� Jason Gay

Check the rules before you fly, but currently, liquids must be carried in 100ml bottles and stored in a clear plastic bag that holds no more than one litre in total.

BBC: A guide to travelling with only carry-on luggage

Next weekend's Oklahoma City Memorial Marathon and Half-Marathon, organized as a tribute to the victims of the 1995 bombing that killed 168 people at that city's federal building, only accepts gear in the clear plastic bag it provides runners.

WSJ: New York Road Runners enhances baggage check

The Department of Transportation now requires airlines to present clear information about bag fees.

WSJ: Summer Air-Travel Survival Guide

Runners are being encouraged not to bring bags to the City Parks Foundation Run for the Parks, but people who do will be asked to put all their belongings in a clear, plastic bag provided by race officials.

WSJ: New York Road Runners enhances baggage check

It is true that the studies done on acupuncture have been a mixed bag with some showing clear effectiveness beyond placebo (many of these animal studies) and others showing lesser effectiveness within the placebo range.

FORBES: Does NIH recommend acupuncture?

But there have been a number of questionable calls on base running--when it wasn't immediately clear if a player actually tagged the bag or if a runner was tagged or not.

FORBES: Magazine Article

Even its creators thought the clear, stumpy bottle looked like a hospital plasma bag.

ECONOMIST: Drinking fashions

It was not clear how long he had been there, a bag of carrots and milk were in the refrigerator, they said.

CNN: STORY HIGHLIGHTS

Using a roll of clear plastic film bought at a shipping store, he binds each bag by hand, rotating it on a swivel chair.

WSJ: To Meet the Biggest Wrap Stars, Stroll Through the Miami Airport