3 ms·

You're right that material things can weigh you down. However, in the case of stamps they're probably one of the smallest and lightest physical items one can co

• klyrs 5y ago
  However, they aren't stored in an optimal packing, because that would ruin the stamps. They're stored in binders, increasing their weight and volume more than tenfold.
  • thioordc 5y ago
    Yeah 10 times a small number is still small.
    • klyrs 5y ago
      If you have a one-stamp collection, you're absolutely right. But collectors often end up with many boxes of binders.
• lapetitejort 5y ago
  Element collecting, as practiced by Bill Gates, might be the lowest. Although collectors tend to horde 10^23 items more than needed.