The same way I am, I mail so rarely that I usually dont have any stamps, and when I do they are usually the wrong amount (seems to change often). So I need to s

The same way I am, I mail so rarely that I usually dont have any stamps, and when I do they are usually the wrong amount (seems to change often). So I need to spend the time to find the correct price, maybe go buy more stamps then mail it. If I could just use a service like this I would probably do it. Although when I do have to mail things I usually have to include things so its a manual process anyway. Maybe this is tailored to use for complain letters or threats that people don't want coming from their geographically location...?