[h=3]Never allow a telemarketer to call you again.[/h] Don't hang up when a telemarketer calls you. Say, "Please put me on your do not call list," and your name will not be marked down as 'no answer' like it does when you simply hang up
The one trainer at my gym mentioned one issue with ordering glasses on line. Where ever he was ordering them, the quality of their prescriptions were all over the place. So he found himself ordering like 6 pairs, in hopes that one would actually be correct. But that was his experience.