Tricks of the Trade collects hundreds of little tips specific to various professions, but often useful to everyday Joes.
Painter: Before resealing a can of paint, blow one deep breath into the can and close it quickly. You’ll fill it with carbon dioxide, which will keep the paint from oxidizing prevent it from developing the “skin” that paint gets when it sits a while.
Some of the “professions” are faux, but still clever:
Sandwich Enthusiast: When ordering a “custom” sandwich from a deli, Subway, or college cafeteria, say the name of each ingredient with an air of finality, as though it will be the last ingredient on your sandwich. The sandwich-maker will pile plenty of the stuff on, trying to fill your sandwich to a respectable size, not realizing you intend to ask for more ingredients.