pageoneresults - 5:06 pm on Jan 17, 2008 (gmt 0)

From a business standpoint, oddly, I see the Zip+4 on a relatively small percentage of the business cards I get.

In many instances it may be due to space limitations. I plan on having a ZIP+4 when printing client business cards. It's a given.

Maybe 10% max - the rest all go with the simple 5 digits.

In most instances, that is all that is required, the U.S.P.S. will do the rest for you.

You might expect businesses to be more sensitive to the issue, but that apparently isn't the case.

It's habit. And, since the U.S.P.S. do most everything for you, most don't worry about it. Their mail will get delivered with or without it. Without it, you will always pay "full postage" no matter what. In doing mass mailings, using it plus other requirements will help save you BIG MONEY! :)

A tour of the U.S.P.S. Bulk Mail Center is an eye opener. To see how millions of pieces of mail are handled each day is pretty amazing. The U.S.P.S. automates most everything. Billions of ZIP+4 Bar Codes are being sprayed on residential and business mail every day across the nation.