Dollar Store Shopping Tips

Have you ever been to a Dollar Store?  Ok, well then don't trash talk it!  However, even though it's great being cheap, especially for us working people, is it always the best idea?  I thought so, until I read this

When you're trying to save money, the dollar store can seem like a magical place. Abracadabra, everything's a buck or less! But just because something's inexpensive doesn't make it a good buy at such retail establishments.

(via Best and Worst Dollar Store Buys - Yahoo! Shopping.)