I went through all my fee calculators today and made sure they were all up-to-date with the latest fee rates. I also spent some time adding a "Previous Versions" dropdown list at the bottom of each calculator so that people can see how the calculator has evolved over time and what changes were made. Some people have actually told me they prefer the older versions better so I've decided to bring them all back and make it easy to jump from one version to another. I also updated the currecy exchange rates used by my advanced PayPal calculator, and I'm trying to figure out a way to get those to auto-update themselves, which I'll most likely add in a later version.