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News updates all day from your Fast Company editors. Cell phone bill shock is a nasty problem for many customers in the U.S. on a regular basis, and it's not much of a surprise when the industry is rife with nickel-and-dime practices for adding to your bill.

It's hard to know what products mean when they say they are "environmentally friendly" or "fully compostable," but there are rules about what companies can and can't claim about their products.