1 Raw shrimp should be firm, translucent, and somewhat shiny, with no noticeable odor. Most of the time, raw shrimp will have the legs and shell, and often the head attached.  Frozen shrimp, cooked or raw, should be defrosted in the refrigerator overnight, before attempting to clean or devein them.
Most airlines in the United States, including American, Delta and United, allow carry-on bags that are no more than 22 inches long, 14 inches wide and nine inches high.
Many luggage stores sell suitcases described as 'carry-on', but these suitcases are sometimes larger than the size most airlines will accept. The safe maximum size is 45, in the form of a 22 x 14 x 9 bag. Some airlines allow up to as much as 55, but most do not. Not only do luggage stores and manufacturers not always tell you if their bag is legally sized or not, but they also frequently mis-measure their bag.