StampCalculator — Got a bunch of stamps of different denominations? Maybe people have donated them to your organization over time and you want to make good use of them all? Then StampCalculator is for you! Use StampCalculator to calculate exact postage with the stamps you have.

Vote! — Conduct your own polls using the Range Voting voting method! Range voting lets your voters express not only which candidates they prefer, but how much they prefer the candidates relative to each other.