State Postal Abbreviations

My oldest is trying to memorize the state postal abbreviations through his spelling program (Spelling Power).  I feel that knowing the abbreviations is important...one of those "basic knowledge" items that you need in the real world.  I can't tell you how many times people have looked at our postal code (AK) and thought we came from Arkansas!!!!  Not even close!  So I did a search on the internet for some resources to help my son solidify his knowledge on the postal codes.  See this post with a link to download some worksheets that help with the postal codes.