The thrift store is full of hidden treasures. And if you run across one of these valuable types of mugs, you might want to consider adding it to your cart.

Here are 15 companies recently named as the most valuable in the world. Sept. 30, 2013 — -- intro: The most valuable brands also happen to have company logos more recognizable than many of ...

Repeating digits seem popular in logos; 33 comes in at 14th, and 99 at 19th, for instance. Meanwhile, the most unpopular numbers are 71, 87, and 94, with only one logo trademark application apiece.