Every time the postage goes up, I need to make up a little chart to post up by my desk. I don't know why the post office website doesn't have an easy to print out chart like this. It seems like it should be something that they would naturally make available. Just so you won't need to go through the trouble of make a chart of your own, I'm posting the one I made here for you to use.
Chart as a "gif" file.
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"PDF" file - Chart Of The New First Class Postage Rates
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