Here is one for you and you may not even notice it. You know those big green signs on the Interstates? Well someone decided that the font on those signs was not clear enough so they came up with a new font called 'clearview' and it is being applied to new signs. Here is the thing about it. The average or above or below average person can't tell the difference in the font unless the signs with the new and the old font were placed side by side. Here is how to tell them apart. The new font has thinner letters and the onenings in some letters like "a', "b', "d", "e", "o", "p", etc. are larger. Eventually the entire Interstate system will receive the new signs.